Jackson word cross

3. the mass of a sample of a compound divided by the amount of substance in the sample,
6. the number of protons found in the nucleus of every atom of a certain element
8. a way of writing very large or very small numbers
9. this elemental group usually has a mixture of the properties of metal and nonmetals
11. a chemical element that lacks the characterizations of metal and typically has a low melting or boiling point.
13. a material that is usually very hard and has good electrical and thermal conductivity.
14. a group seven chemical elements that make up Group 18 of the periodic table
16. an atom or molecule that has a net electrical charge
17. a rule that reflects the observation that main group elements tend to bond in such a way that each atom has eight electrons in its valence shell
18. the line on the periodic table that indicates the metalloids

1. the name of an electron located on the outer shell of an atom
2. a positively charged ion
4. is the mass of an atom
5. a row of chemical elements on the periodic table
7. a negatively charged ion
10. the unit of measurement for amount of substance in the International System of Units.
12. a group of six nonmetallic elements that constitute Group 17 on the periotic table
15. a set of chemical elements in the same vertical column of the periodic table.