Unit 2 Periodic Table
... One important property of the noble gases is their inactivity. They are inactive because their outermost energy level is full. Because they do not readily combine with other elements to form compounds, the noble gases are called inert. The family of noble gases includes helium, neon, argon, krypton, ...
... One important property of the noble gases is their inactivity. They are inactive because their outermost energy level is full. Because they do not readily combine with other elements to form compounds, the noble gases are called inert. The family of noble gases includes helium, neon, argon, krypton, ...
Chapter 22- Properties of Atoms and the Periodic Table
... ii. Number of _______________ is equal to mass number minus atomic number. iii. Name of _______________ followed by mass number identifies the isotopes. iv. ______________________________ is the weighted-average mass of an element’s isotopes. v. Average atomic mass is closest to its most a__________ ...
... ii. Number of _______________ is equal to mass number minus atomic number. iii. Name of _______________ followed by mass number identifies the isotopes. iv. ______________________________ is the weighted-average mass of an element’s isotopes. v. Average atomic mass is closest to its most a__________ ...
Chapter 22- Properties of Atoms and the Periodic
... ii. Number of _______________ is equal to mass number minus atomic number. iii. Name of _______________ followed by mass number identifies the isotopes. iv. ______________________________ is the weighted-average mass of an element’s isotopes. v. Average atomic mass is closest to its most a__________ ...
... ii. Number of _______________ is equal to mass number minus atomic number. iii. Name of _______________ followed by mass number identifies the isotopes. iv. ______________________________ is the weighted-average mass of an element’s isotopes. v. Average atomic mass is closest to its most a__________ ...
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5-2%20Using%20the%20Periodic%20Table[1]
... Anions ( neg. charge) are always larger than the atoms from which they form. This change in atomic size is due to the change in the force of attraction between the protons and between the electrons. Spread out ...
... Anions ( neg. charge) are always larger than the atoms from which they form. This change in atomic size is due to the change in the force of attraction between the protons and between the electrons. Spread out ...
The Periodic Table
... • Notice the “zigzag” line on the table. Elements to the LEFT of the line are “METALS”. Elements to the RIGHT of the line are “NON-METALS”. Elements that are right next to the line are often ...
... • Notice the “zigzag” line on the table. Elements to the LEFT of the line are “METALS”. Elements to the RIGHT of the line are “NON-METALS”. Elements that are right next to the line are often ...
The Periodic Table - Miss Schaefer`s Science Grade 8
... • Elements on the periodic table can be grouped into families (or groups) based on their chemical properties. – We call them “families” because the elements in each family are “related.” ...
... • Elements on the periodic table can be grouped into families (or groups) based on their chemical properties. – We call them “families” because the elements in each family are “related.” ...
Periodic Trends - The Green Isle
... the nucleus and the attraction of the nucleus. Why do you think the distance between the valence electrons and the nucleus determines the amount of energy required to remove electrons from the atom? ...
... the nucleus and the attraction of the nucleus. Why do you think the distance between the valence electrons and the nucleus determines the amount of energy required to remove electrons from the atom? ...
Summary of the Periodic Table of Elements: 1. Elements in the same
... c. Atomic size d. Metallic properties 6. Valence electrons are involved in the chemical combining of elements in the forming of molecules. 7. Elements to the left in the periodic table tend to lose electrons. 8. Elements to the right in the periodic table tend to gain electrons. 9. The amount of ene ...
... c. Atomic size d. Metallic properties 6. Valence electrons are involved in the chemical combining of elements in the forming of molecules. 7. Elements to the left in the periodic table tend to lose electrons. 8. Elements to the right in the periodic table tend to gain electrons. 9. The amount of ene ...
What is the periodic table of elements - Net Start Class
... isotopes, to have greater mass. Atomic mass is the average mass of all isotopes of an element. Elements are arranged on the periodic table by their atomic numbers. Typically, atomic numbers are in the same order as atomic masses. The periodic table is a grid of rows and columns. The seven rows are c ...
... isotopes, to have greater mass. Atomic mass is the average mass of all isotopes of an element. Elements are arranged on the periodic table by their atomic numbers. Typically, atomic numbers are in the same order as atomic masses. The periodic table is a grid of rows and columns. The seven rows are c ...
Chapter 6 Studyguide: The Periodic Table
... 25.What factors contribute to the increase in atomic size within a group in the periodic table as the atomic ...
... 25.What factors contribute to the increase in atomic size within a group in the periodic table as the atomic ...
5.2 The Modern Periodic Table
... period. (Period # = # of energy levels) • Each column in the periodic table is called a group. (Group # = # of valence electrons) – similar electron configurations – similar chemical properties ...
... period. (Period # = # of energy levels) • Each column in the periodic table is called a group. (Group # = # of valence electrons) – similar electron configurations – similar chemical properties ...
PERIODIC TABLE OF ELEMENTS NOTESHEET
... most reactive elements on the Periodic Table are found in Groups ONE (Alkali Metals) and SEVENTEEN (Halogens). ...
... most reactive elements on the Periodic Table are found in Groups ONE (Alkali Metals) and SEVENTEEN (Halogens). ...
5SC19 Elements, Mixtures, and Compounds
... The Periodic Table groups elements in an organized fashion. Each box on the periodic table represents one element. Each element has its own unique symbol. ...
... The Periodic Table groups elements in an organized fashion. Each box on the periodic table represents one element. Each element has its own unique symbol. ...
Reading the Periodic Table - Science
... • Elements in the same group or family have similar characteristics or properties. ...
... • Elements in the same group or family have similar characteristics or properties. ...
NAME: Unit 3 Test Review Arsenic (As), Selenium (Se), and
... 6. Which has a higher atomic mass metals or non metals? metals 7. The valence electrons determine an elements chemical property and they also determine how an element reacts with other elements. 8. What are the three main subatomic particles of an atom? protons, neutrons, electrons 9. Which group on ...
... 6. Which has a higher atomic mass metals or non metals? metals 7. The valence electrons determine an elements chemical property and they also determine how an element reacts with other elements. 8. What are the three main subatomic particles of an atom? protons, neutrons, electrons 9. Which group on ...
periodic table quiz review
... b) Do elements have similar properties if they are in the same group, or the same period? c) What are valence electrons? d) Which indicates the number of valence electrons, the group number or period number? e) What is an orbital? f) What happens to the number of orbitals going across a period? g) W ...
... b) Do elements have similar properties if they are in the same group, or the same period? c) What are valence electrons? d) Which indicates the number of valence electrons, the group number or period number? e) What is an orbital? f) What happens to the number of orbitals going across a period? g) W ...
Section 15.2 - CPO Science
... Some materials allow electrons to flow easily through them. We call these materials electrical conductors. ...
... Some materials allow electrons to flow easily through them. We call these materials electrical conductors. ...
atomic number
... 2- Each period in the modern periodic table starts with --------------------elements. ( metal ) 3- The strongest non-metallic element lies in group ----------------. ( 7A) 4- ------------------- lie preceding noble gases in the periodic table, and during the chemical reaction they form ------------- ...
... 2- Each period in the modern periodic table starts with --------------------elements. ( metal ) 3- The strongest non-metallic element lies in group ----------------. ( 7A) 4- ------------------- lie preceding noble gases in the periodic table, and during the chemical reaction they form ------------- ...
The World of Chemistry - Mercer Island School District
... 3. How many elements are on the modern periodic table? How many of these can be found in nature? 4. Why do the symbols for some elements (such as iron) seem to have no relationship to their name? 5. What is meant by the atomic and mass number of an element? 6. Elements in the periodic table are arra ...
... 3. How many elements are on the modern periodic table? How many of these can be found in nature? 4. Why do the symbols for some elements (such as iron) seem to have no relationship to their name? 5. What is meant by the atomic and mass number of an element? 6. Elements in the periodic table are arra ...
Introducing the Elements - Paul M. Dorman High School
... Introducing the Elements The Element Song ...
... Introducing the Elements The Element Song ...
R The Periodic Table
... • Though individual atoms always have a whole number of amu’s, the atomic mass on the periodic table is shown as a decimal number because it is an average of all the isotopes of an element. ...
... • Though individual atoms always have a whole number of amu’s, the atomic mass on the periodic table is shown as a decimal number because it is an average of all the isotopes of an element. ...
The Periodic Law (Unit #5) Study Guide 1. Who is credited with
... 1. Who is credited with developing the first successful periodic table? __Mendeleev_________ 2. This person used atomic _mass_____ and _properties___ of elements to arrange the elements in periodic order. 3. Henry Moseley found that elements in the periodic table fit into patterns better when arrang ...
... 1. Who is credited with developing the first successful periodic table? __Mendeleev_________ 2. This person used atomic _mass_____ and _properties___ of elements to arrange the elements in periodic order. 3. Henry Moseley found that elements in the periodic table fit into patterns better when arrang ...
Group 3 element
Group 3 is a group of elements in the periodic table. This group, like other d-block groups, should contain four elements, but it is not agreed what elements belong in the group. Scandium (Sc) and yttrium (Y) are always included, but the other two spaces are usually occupied by lanthanum (La) and actinium (Ac), or by lutetium (Lu) and lawrencium (Lr); less frequently, it is considered the group should be expanded to 32 elements (with all the lanthanides and actinides included) or contracted to contain only scandium and yttrium. The group itself has not acquired a trivial name; however, scandium, yttrium and the lanthanides are sometimes called rare earth metals.Three group 3 elements occur naturally, scandium, yttrium, and either lanthanum or lutetium. Lanthanum continues the trend started by two lighter members in general chemical behavior, while lutetium behaves more similarly to yttrium. This is in accordance with the trend for period 6 transition metals to behave more similarly to their upper periodic table neighbors. This trend is seen from hafnium, which is almost identical chemically to zirconium, to mercury, which is quite distant chemically from cadmium, but still shares with it almost equal atomic size and other similar properties. They all are silvery-white metals under standard conditions. The fourth element, either actinium or lawrencium, has only radioactive isotopes. Actinium, which occurs only in trace amounts, continues the trend in chemical behavior for metals that form tripositive ions with a noble gas configuration; synthetic lawrencium is calculated and partially shown to be more similar to lutetium and yttrium. So far, no experiments have been conducted to synthesize any element that could be the next group 3 element. Unbiunium (Ubu), which could be considered a group 3 element if preceded by lanthanum and actinium, might be synthesized in the near future, it being only three spaces away from the current heaviest element known, ununoctium.