Chapter 12 The Periodic Table
... silvery in their pure form and are highly reactive. This group includes the elements lithium (Li), sodium (Na), and potassium (K). ...
... silvery in their pure form and are highly reactive. This group includes the elements lithium (Li), sodium (Na), and potassium (K). ...
File
... a. Electronegativityis the ability ofan anion to attractanotheranion. b. Electronegativitygenerallyincreasesasyou move from top to bottom within a group. c. Electronegativitygenerallyis higher for metalsthan for nonmetals, d. Electronegativitygenerallyincreasesfrom left to right acrossa period. 19. ...
... a. Electronegativityis the ability ofan anion to attractanotheranion. b. Electronegativitygenerallyincreasesasyou move from top to bottom within a group. c. Electronegativitygenerallyis higher for metalsthan for nonmetals, d. Electronegativitygenerallyincreasesfrom left to right acrossa period. 19. ...
Powerpoint - Valence Electrons
... Look at the outer shell of each: – Outer shells not full. – Reactive! Lithium ...
... Look at the outer shell of each: – Outer shells not full. – Reactive! Lithium ...
The Periodic Table Notes
... Oxidation numbers are related to the number of valence electrons Valence electrons are the number of electrons in the outermost energy level of an ...
... Oxidation numbers are related to the number of valence electrons Valence electrons are the number of electrons in the outermost energy level of an ...
The Periodic Table - Lincoln Park High School
... of outer-shell electrons result in increased attraction by nucleus for the fewer remaining electrons. • negative ions - anions - always larger than the neutral atom because effective nuclear attraction is less for increased number of electrons ...
... of outer-shell electrons result in increased attraction by nucleus for the fewer remaining electrons. • negative ions - anions - always larger than the neutral atom because effective nuclear attraction is less for increased number of electrons ...
Periodic Table Assessment Quiz 2016
... with particle accelerators and cyclotrons, they will be able to make more elements. Many of the manmade elements on the periodic table only last for a few milliseconds before they break apart. http://www.rsc.org/chemistryworld/2016/01/new-elements-periodic-tableseventh-row-iupac ...
... with particle accelerators and cyclotrons, they will be able to make more elements. Many of the manmade elements on the periodic table only last for a few milliseconds before they break apart. http://www.rsc.org/chemistryworld/2016/01/new-elements-periodic-tableseventh-row-iupac ...
ReviewCat1 - greenslime.info
... Metals - good conductors of heat/electricity Metalloids - have properties of both metals & nonmetals Non-metals - poor conductors of heat/electricity Valence - # of electrons in the outer most shell of an atom; - determines the reactivity of an element ...
... Metals - good conductors of heat/electricity Metalloids - have properties of both metals & nonmetals Non-metals - poor conductors of heat/electricity Valence - # of electrons in the outer most shell of an atom; - determines the reactivity of an element ...
Date_______________ Elements and facts of the periodic table
... _________________odorless, tasteless, colorless gas; lightest of all elements _______________natural material from which metal can be profitable extracted ________________most reactive metal _________________only metal liquid at room temperature ...
... _________________odorless, tasteless, colorless gas; lightest of all elements _______________natural material from which metal can be profitable extracted ________________most reactive metal _________________only metal liquid at room temperature ...
CI_Chap_1_Test_A_Study_Guide
... Transition metals like Gold are toward the middle of the periodic table. The most common element in the universe is hydrogen. Atoms of an element always have a certain number of protons. Isotopes of an element differ in the number of neutrons. When an atom loses one or more electrons in becomes an i ...
... Transition metals like Gold are toward the middle of the periodic table. The most common element in the universe is hydrogen. Atoms of an element always have a certain number of protons. Isotopes of an element differ in the number of neutrons. When an atom loses one or more electrons in becomes an i ...
College Chemistry – Atomic Structure / Periodic Table Test Study
... Know how to read the periodic table -- element symbols, element name, atomic number, atomic mass, properties, group #'s, period #'s Know how to determine the number of protons, neutrons, or electrons for an element Know where metals, metalloids, nonmetals, and noble gases are on the periodic table K ...
... Know how to read the periodic table -- element symbols, element name, atomic number, atomic mass, properties, group #'s, period #'s Know how to determine the number of protons, neutrons, or electrons for an element Know where metals, metalloids, nonmetals, and noble gases are on the periodic table K ...
The Periodic Table
... family are fluorine, chlorine, bromine, iodine, and astatine. Halogens have 7 valence electrons, which explains why they are the most active non-metals. They are never found free in nature ...
... family are fluorine, chlorine, bromine, iodine, and astatine. Halogens have 7 valence electrons, which explains why they are the most active non-metals. They are never found free in nature ...
Name: Date: _____ Pd: _____ Chemistry, PERIODIC TABLE Spring
... when it comes in contact with hydrogen sulfide, , which is found in the air and in some foods. However, stainless steel does not tarnish when it comes in contact with hydrogen sulfide. 14. Draw a Lewis electron-dot diagram for the compound that tarnishes silver. 15. In the ground state, an atom of w ...
... when it comes in contact with hydrogen sulfide, , which is found in the air and in some foods. However, stainless steel does not tarnish when it comes in contact with hydrogen sulfide. 14. Draw a Lewis electron-dot diagram for the compound that tarnishes silver. 15. In the ground state, an atom of w ...
noble gases
... based on their atomic mass (average weight of the atoms in the element). He found that this did not always work. So he decided to group elements based on their atomic number (the number of protons in the nucleus) instead. Using the periodic table, Mendeleev was able to actually predict the existance ...
... based on their atomic mass (average weight of the atoms in the element). He found that this did not always work. So he decided to group elements based on their atomic number (the number of protons in the nucleus) instead. Using the periodic table, Mendeleev was able to actually predict the existance ...
- sartep.com
... 6 .Which diagram to the right is the Lewis electron dot diagram for phosphorous? a. A b. B c. C d. D 7. From left to right across a period, what change is occurring within the atomic nuclei? a. A proton is gained. _ b. An electron is gained. c. A neutron is lost. d. The electron cloud size is decrea ...
... 6 .Which diagram to the right is the Lewis electron dot diagram for phosphorous? a. A b. B c. C d. D 7. From left to right across a period, what change is occurring within the atomic nuclei? a. A proton is gained. _ b. An electron is gained. c. A neutron is lost. d. The electron cloud size is decrea ...
Atomic and Molecular Structure – Standard 1 Review
... 1a.3 What does an element’s Mass Number (Atomic Mass) tell you about that element? ...
... 1a.3 What does an element’s Mass Number (Atomic Mass) tell you about that element? ...
1. In what order did Mendeleev arrange the elements in his periodic
... c) increasing number of neutrons d) increasing atomic weight 2. What family of elements was unknown when Mendeleev created the periodic table? a) noble gases b) alkali metals c) alkaline earth metals d) halogens 3. Mendeleev predicted the existence of which then unknown element? a) zinc b) silicon c ...
... c) increasing number of neutrons d) increasing atomic weight 2. What family of elements was unknown when Mendeleev created the periodic table? a) noble gases b) alkali metals c) alkaline earth metals d) halogens 3. Mendeleev predicted the existence of which then unknown element? a) zinc b) silicon c ...
Chapter 6 - Fredericksburg City Schools
... S The representative elements always behave the same. And any one member of the group is “representative” of all the other members in its group. S The representative elements are all the elements in the s and p blocks. S The transition metals are the Group B elements. S They behave differently at di ...
... S The representative elements always behave the same. And any one member of the group is “representative” of all the other members in its group. S The representative elements are all the elements in the s and p blocks. S The transition metals are the Group B elements. S They behave differently at di ...
Revision of Chemistry work
... 2. Name 4 other elements not in the first 20 on the periodic table and give their chemical symbol. 3. Name two elements that have been named after planets. 4. Make a word using element symbols. 5. Which are there most of in the periodic table? Solids, Liquids or Gases. 6. Which are there less of in ...
... 2. Name 4 other elements not in the first 20 on the periodic table and give their chemical symbol. 3. Name two elements that have been named after planets. 4. Make a word using element symbols. 5. Which are there most of in the periodic table? Solids, Liquids or Gases. 6. Which are there less of in ...
ionic and covalent bonding - Atomic Theory and Periodic Table
... The formula of an ionic compound is actually the _______________ in which the ions are present. This can be easily determined because the overall charge on an ionic compound must neutral be _______________. As this formula gives a ratio rather than actual numbers of ions, it is empirical called an _ ...
... The formula of an ionic compound is actually the _______________ in which the ions are present. This can be easily determined because the overall charge on an ionic compound must neutral be _______________. As this formula gives a ratio rather than actual numbers of ions, it is empirical called an _ ...
SOL Review Station: Equipment, Accuracy, Precision and Lab Safety
... 1. What is formed if you change the following in an atom? a. Protons ...
... 1. What is formed if you change the following in an atom? a. Protons ...
Name
... Both rhaatrap (Rh) and doadeer (Do) have atoms with four energy levels but Do has a smaller atomic radius than Rh. Nedtine (Nd), grune (Gr) and sississ (Ss) are all members of group 15. Grune (Gr) has fewer electrons than nedtine (Nd). Urrp (Up), oz (Oz) and nuutye (Nu) all gain two electrons. Nuuty ...
... Both rhaatrap (Rh) and doadeer (Do) have atoms with four energy levels but Do has a smaller atomic radius than Rh. Nedtine (Nd), grune (Gr) and sississ (Ss) are all members of group 15. Grune (Gr) has fewer electrons than nedtine (Nd). Urrp (Up), oz (Oz) and nuutye (Nu) all gain two electrons. Nuuty ...
File - Miss Cummings
... Modern Periodic Law states that properties of elements repeat periodically or in a pattern when elements are arranged by Moseley’s increasing atomic number (rather than my Mendeleev’s atomic mass). ...
... Modern Periodic Law states that properties of elements repeat periodically or in a pattern when elements are arranged by Moseley’s increasing atomic number (rather than my Mendeleev’s atomic mass). ...
Lesson 1_lesson2
... • The reluctance of the noble gases to react chemically is the key that unlocks our understanding of why other elements do react. • Unreactive Species: If an atom has the electron configuration of a noble gas it will be chemically unreactive, or only react with difficulty. • Reactive Species: If an ...
... • The reluctance of the noble gases to react chemically is the key that unlocks our understanding of why other elements do react. • Unreactive Species: If an atom has the electron configuration of a noble gas it will be chemically unreactive, or only react with difficulty. • Reactive Species: If an ...
Pre-Test Atomic Structure
... 5. An atom is usually neutrally charged. This means the number of protons must equal the number of ______________. 6. The atomic number of an atom equals the number of ____________ 7. All atoms of the same element will have the same number of ________________ 8. The periodic table is arranged in ord ...
... 5. An atom is usually neutrally charged. This means the number of protons must equal the number of ______________. 6. The atomic number of an atom equals the number of ____________ 7. All atoms of the same element will have the same number of ________________ 8. The periodic table is arranged in ord ...
Noble gas
The noble gases make a group of chemical elements with similar properties. Under standard conditions, they are all odorless, colorless, monatomic gases with very low chemical reactivity. The six noble gases that occur naturally are helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and the radioactive radon (Rn).For the first six periods of the periodic table, the noble gases are exactly the members of group 18 of the periodic table.It is possible that due to relativistic effects, the group 14 element flerovium exhibits some noble-gas-like properties, instead of the group 18 element ununoctium. Noble gases are typically highly unreactive except when under particular extreme conditions. The inertness of noble gases makes them very suitable in applications where reactions are not wanted. For example: argon is used in lightbulbs to prevent the hot tungsten filament from oxidizing; also, helium is breathed by deep-sea divers to prevent oxygen and nitrogen toxicity.The properties of the noble gases can be well explained by modern theories of atomic structure: their outer shell of valence electrons is considered to be ""full"", giving them little tendency to participate in chemical reactions, and it has been possible to prepare only a few hundred noble gas compounds. The melting and boiling points for a given noble gas are close together, differing by less than 10 °C (18 °F); that is, they are liquids over only a small temperature range.Neon, argon, krypton, and xenon are obtained from air in an air separation unit using the methods of liquefaction of gases and fractional distillation. Helium is sourced from natural gas fields which have high concentrations of helium in the natural gas, using cryogenic gas separation techniques, and radon is usually isolated from the radioactive decay of dissolved radium, thorium, or uranium compounds (since those compounds give off alpha particles). Noble gases have several important applications in industries such as lighting, welding, and space exploration. A helium-oxygen breathing gas is often used by deep-sea divers at depths of seawater over 55 m (180 ft) to keep the diver from experiencing oxygen toxemia, the lethal effect of high-pressure oxygen, and nitrogen narcosis, the distracting narcotic effect of the nitrogen in air beyond this partial-pressure threshold. After the risks caused by the flammability of hydrogen became apparent, it was replaced with helium in blimps and balloons.