vocab 6

3. an atom or group of atoms that has a positive or negative charge
4. a nonmetal in Group 7A of the periodic table
5. When elements are arranged in order of increasing atomic number, there is a periodic repetition of their chemical and physical properties
7. one half the distance between the nuclei of two atoms of the same element when atoms are joined
9. any metal in Group 2A of the periodic table
11. any metal in Group 1A of the periodic table
13. n element in the lanthanide or actinide series; the highest occupied s sub-level and nearby f sub-level of its atoms generally contain electrons; also called inner transition element
14. a chemical element in the d-block of the periodic table, though the elements of group 12 are sometimes excluded
15. any group of atoms with a positive charge

1. an element in A group in the periodic table; as a group these elements display a wide range of physical and chemical properties. In their atoms the s and p sub-levels in the highest occupied energy level are partially filled.
2. an element in Group 8A of the periodic table; the s and p sub-levels of the highest occupied energy level are filled
6. the energy required to remove an electron from an atom in its gaseous state
8. the ability of an atom to attract electrons when the atom is in a compound
10. any atom or group of atoms with a negative charge
12. an element that tends to have properties that are simular to those of metals and nonmetals