Chapter 6

1. the type of alkali metals in group 2A on the periodic table
5. this type of energy is the energy required to remove an electron from an atom
8. this law states that when elements are arranged in order of increasing atomic number, there is a periodic repetition of their physical and chemical properties
9. an ion with a negative charge
11. the ability of an atom of an element to attract electrons when the atom is in a compound
13. this type of radius is one half of the distance between the nuclei of two atoms of the same element when the atoms are joined
15. the type of element that has properties similar to metals and nonmetals
16. the type of gases in group 8A on the periodic table that are sometimes called the inert gases because they rarely take part in a reaction
17. an atom or group of atoms that has a positive or negative charge

2. the name for elements that display a wide range of physical and chemical properties in groups 1a through 7a
3. the type of metal elements in group 1A on the periodic table
4. an ion with a positive charge
6. this type of transition metal appears below the main body of the periodic table
7. the type of elements that are poor conductors of heat and electric current
10. nonmetals in group 7A on the periodic table
12. the atoms of this metal are displayed in the main body of the periodic table such as copper, silver, gold, iron
14. the type of elements that are good conductors of heat and electric current