Midterm Review 2017
... Table are considered in order from top to bottom, the ionization energy of each successive element decreases. This decrease is due to 1) decreasing radius and decreasing shielding effect 2) decreasing radius and increasing shielding effect 3) increasing radius and decreasing shielding effect 4) incr ...
... Table are considered in order from top to bottom, the ionization energy of each successive element decreases. This decrease is due to 1) decreasing radius and decreasing shielding effect 2) decreasing radius and increasing shielding effect 3) increasing radius and decreasing shielding effect 4) incr ...
Periodic Trends - Sardis Secondary
... b) Explain the above trend. When a metal atom loses an electron to become a cation, it loses it from the outer shell. The outer shell no longer exists, therefore, the new valence electrons are closer to the nucleus than the original configuration that existed. 11. a) Compare the atomic radii for non ...
... b) Explain the above trend. When a metal atom loses an electron to become a cation, it loses it from the outer shell. The outer shell no longer exists, therefore, the new valence electrons are closer to the nucleus than the original configuration that existed. 11. a) Compare the atomic radii for non ...
Chapter 1 - Manual Science Chemistry/Physics
... List the characteristic that distinguish metals, nonmetals, and metalloids. Main Ideas: The periodic table organizes elements by their chemical properties o Elements serve as the building blocks of matter. o Elements cannot be decomposed by chemical changes o Each element has characteristic pr ...
... List the characteristic that distinguish metals, nonmetals, and metalloids. Main Ideas: The periodic table organizes elements by their chemical properties o Elements serve as the building blocks of matter. o Elements cannot be decomposed by chemical changes o Each element has characteristic pr ...
Nature of Matter
... • Proton: +, nucleus • Neutrons: neutral, nucleus • Electrons: negative, cloud around nucleus; organization inside cloud – into shells ...
... • Proton: +, nucleus • Neutrons: neutral, nucleus • Electrons: negative, cloud around nucleus; organization inside cloud – into shells ...
ATOMS - Greenville Public School District
... (except He which only has 2) “Happy” because their outer electron shell is filled! NON REACTIVE (inert) gases Nonmetals NO bonding with other elements He, Ne, Ar, Kr, Xe ...
... (except He which only has 2) “Happy” because their outer electron shell is filled! NON REACTIVE (inert) gases Nonmetals NO bonding with other elements He, Ne, Ar, Kr, Xe ...
Atomic Structure Notes
... suggested a solid atom with positively and negatively charged particles evenly distributed throughout the mass of the atom. • Ernest Rutherford, who was once a student of Thomson’s, is credited with discovering that most of the atom is made up of "empty space.". In 1909 he and his assistants conduct ...
... suggested a solid atom with positively and negatively charged particles evenly distributed throughout the mass of the atom. • Ernest Rutherford, who was once a student of Thomson’s, is credited with discovering that most of the atom is made up of "empty space.". In 1909 he and his assistants conduct ...
hydrogen atom
... How to make sense of all these elements? Scientists like “a place for everything, and everything in its place.” And no more places and things than necessary. ...
... How to make sense of all these elements? Scientists like “a place for everything, and everything in its place.” And no more places and things than necessary. ...
Unit #3 - Wikispaces
... a) "BrINClHOF"- a "word" used to remember the seven elements that are always diatomic when found free, (not combined with any other element(s)), in nature. It represents the chemical symbol for each of the indicated elements. What elements are indicated? Bromine, Iodine, Nitrogen, Chlorine, Hydrogen ...
... a) "BrINClHOF"- a "word" used to remember the seven elements that are always diatomic when found free, (not combined with any other element(s)), in nature. It represents the chemical symbol for each of the indicated elements. What elements are indicated? Bromine, Iodine, Nitrogen, Chlorine, Hydrogen ...
Another look at chemical reactions HYDROGEN PEROXIDE WATER
... Another look at chemical reactions The decomposition of hydrogen peroxide over time (or when poured over a cut) works like this: OXYGEN HYDROGEN WATER GAS PEROXIDE H O ...
... Another look at chemical reactions The decomposition of hydrogen peroxide over time (or when poured over a cut) works like this: OXYGEN HYDROGEN WATER GAS PEROXIDE H O ...
Atomic Structure Notes Atoms
... Electron cloud or energy rings -Atoms are made of subatomic particles: protons, neutrons, & electrons ...
... Electron cloud or energy rings -Atoms are made of subatomic particles: protons, neutrons, & electrons ...
Chapter 2 - Faculty Web Pages
... one compound, the ratios of the masses of the second element that combine with 1 gram of the first element can always be reduced to small whole numbers. Ferrous Chloride, 44.06% Fe, 55.94% Cl and Ferric Chloride 34.43% Fe, 65.57% Cl 55.94 g Cl 65.57 g Cl g Cl/1 g Fe = 44.06 g Fe = 1.2696 g Cl/1 g Fe ...
... one compound, the ratios of the masses of the second element that combine with 1 gram of the first element can always be reduced to small whole numbers. Ferrous Chloride, 44.06% Fe, 55.94% Cl and Ferric Chloride 34.43% Fe, 65.57% Cl 55.94 g Cl 65.57 g Cl g Cl/1 g Fe = 44.06 g Fe = 1.2696 g Cl/1 g Fe ...
document
... arrangement of electrons in atom’s shells and subshells. Rules to predict electron configuration: 1. Electrons occupy the lowest-energy orbitals available, beginning with 1s and continuing in order shown in the fig. 3.5. 2. Each orbital can hold only two electrons, which must be oppositely spin. 3. ...
... arrangement of electrons in atom’s shells and subshells. Rules to predict electron configuration: 1. Electrons occupy the lowest-energy orbitals available, beginning with 1s and continuing in order shown in the fig. 3.5. 2. Each orbital can hold only two electrons, which must be oppositely spin. 3. ...
atoms 1l2l
... A Bohr-‐Rutherford diagram can be completed in a few simple steps, and when done properly shows the numbers and locations of protons, neutrons, and electrons of an atom. In order to input the co ...
... A Bohr-‐Rutherford diagram can be completed in a few simple steps, and when done properly shows the numbers and locations of protons, neutrons, and electrons of an atom. In order to input the co ...
Ch 17 Properties of Atoms - Effingham County Schools
... History of the Periodic Table Periodic means "repeated in a pattern." In the late 1800s, Dmitri Mendeleev, a Russian chemist, searched for a way to organize the elements. When he arranged all the elements known at that time in order of increasing atomic masses, he discovered a pattern. Because ...
... History of the Periodic Table Periodic means "repeated in a pattern." In the late 1800s, Dmitri Mendeleev, a Russian chemist, searched for a way to organize the elements. When he arranged all the elements known at that time in order of increasing atomic masses, he discovered a pattern. Because ...
Chapter 5 Atomic Structure and the Periodic Table
... A. Protons and Atomic Number 1. The periodic table was found to be in atomic number order, not atomic mass order B. The Periodic Law 1. The physical and chemical properties of the elements are periodic functions of their atomic numbers 2. Elements with similar properties are found at regular interva ...
... A. Protons and Atomic Number 1. The periodic table was found to be in atomic number order, not atomic mass order B. The Periodic Law 1. The physical and chemical properties of the elements are periodic functions of their atomic numbers 2. Elements with similar properties are found at regular interva ...
8.3 Metals - UNSW Chemistry
... were arranged in order of increasing atomic weight the eighth element had similar chemical properties to the first element, the ninth element had properties similar to the second element, and so on. Newlands also realized that Döbereiner’s "triads" were largely preserved in this table, however these ...
... were arranged in order of increasing atomic weight the eighth element had similar chemical properties to the first element, the ninth element had properties similar to the second element, and so on. Newlands also realized that Döbereiner’s "triads" were largely preserved in this table, however these ...
Name: Midterm Review (Part II) Fill in the blanks (Chapter 6.1 – 6.3
... In which group in the periodic table are the most reactive metals? In which group in the periodic table are the most reactive nonmetals? Describe the trends in reactivity of nonmetals within groups ((Increase/Decrease down a group?) Is Bromine is more/less reactive than Chlorine? List three properti ...
... In which group in the periodic table are the most reactive metals? In which group in the periodic table are the most reactive nonmetals? Describe the trends in reactivity of nonmetals within groups ((Increase/Decrease down a group?) Is Bromine is more/less reactive than Chlorine? List three properti ...
Egyptian American International School Science Department Grade
... Alkaline earth metals Metals Main Idea The periodic table shows all of the known elements in order of increasing atomic number; the table is organized to group elements with similar properties in vertical columns. Most elements have metallic properties (the metals) and appear on the left side of ...
... Alkaline earth metals Metals Main Idea The periodic table shows all of the known elements in order of increasing atomic number; the table is organized to group elements with similar properties in vertical columns. Most elements have metallic properties (the metals) and appear on the left side of ...
Exam Review
... _P,As,Sb,Bi__8. Name of another element in the same family with Nitrogen _Li,Be,B,C,O,F,Ne____9. Name of another element in the same period with Nitrogen ...
... _P,As,Sb,Bi__8. Name of another element in the same family with Nitrogen _Li,Be,B,C,O,F,Ne____9. Name of another element in the same period with Nitrogen ...
Chapter 4
... *key to the power of the sun ~responsible for radioactive decay ~ +/- ---> + and 3. ...
... *key to the power of the sun ~responsible for radioactive decay ~ +/- ---> + and 3. ...
- Lexington JHS
... • What makes an element reactive? – An incomplete valence electron level. – All atoms (except hydrogen) want to have 8 electrons in their very outermost energy level (This is called the rule of octet.) – Atoms bond until this level is complete. Atoms with few valence electrons lose them during bondi ...
... • What makes an element reactive? – An incomplete valence electron level. – All atoms (except hydrogen) want to have 8 electrons in their very outermost energy level (This is called the rule of octet.) – Atoms bond until this level is complete. Atoms with few valence electrons lose them during bondi ...
Periodic table
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The periodic table is a tabular arrangement of the chemical elements, ordered by their atomic number (number of protons in the nucleus), electron configurations, and recurring chemical properties. The table also shows four rectangular blocks: s-, p- d- and f-block. In general, within one row (period) the elements are metals on the lefthand side, and non-metals on the righthand side.The rows of the table are called periods; the columns are called groups. Six groups (columns) have names as well as numbers: for example, group 17 elements are the halogens; and group 18, the noble gases. The periodic table can be used to derive relationships between the properties of the elements, and predict the properties of new elements yet to be discovered or synthesized. The periodic table provides a useful framework for analyzing chemical behavior, and is widely used in chemistry and other sciences.Although precursors exist, Dmitri Mendeleev is generally credited with the publication, in 1869, of the first widely recognized periodic table. He developed his table to illustrate periodic trends in the properties of the then-known elements. Mendeleev also predicted some properties of then-unknown elements that would be expected to fill gaps in this table. Most of his predictions were proved correct when the elements in question were subsequently discovered. Mendeleev's periodic table has since been expanded and refined with the discovery or synthesis of further new elements and the development of new theoretical models to explain chemical behavior.All elements from atomic numbers 1 (hydrogen) to 118 (ununoctium) have been discovered or reportedly synthesized, with elements 113, 115, 117, and 118 having yet to be confirmed. The first 94 elements exist naturally, although some are found only in trace amounts and were synthesized in laboratories before being found in nature. Elements with atomic numbers from 95 to 118 have only been synthesized in laboratories. It has been shown that einsteinium and fermium once occurred in nature but currently do not. Synthesis of elements having higher atomic numbers is being pursued. Numerous synthetic radionuclides of naturally occurring elements have also been produced in laboratories.