Element crossword

5. The name of the 17th group in the periodic table and is extremely reactive.
6. The name of the elements in group 2. Ex: Be, Mg and Ca (3 words)
8. The metals from group 2-12 that are not very reactive. (2 words)
10. The name of the last group in the periodic table, which are not in the slightest reactive (2 words).
13. opaque, lustrous elements that are good conductors of heat and electricity
15. an element (e.g. arsenic, antimony, or tin) whose properties are intermediate between those of metals and solid nonmetals or semiconductors.
16. the state or power of being reactive or the degree to which a thing is reactive.

1. electrons that are located in the outermost energy level of an atom (2 words).
2. the mass of an atom of a chemical element expressed in AMU. (2 words)
3. The Russian Chemist who created the periodic table (two words).
4. The name of the elements in group 1 excluding hydrogen, which are extremely reactive (2 words).
7. The number of protons and electrons in an atom, determines the element (2 words).
9. an element or substance that is not a metal.
11. a one- or two-letter designation/name of an element (2 words).
12. anything that has mass and volume.
14. The horizontal rows of the periodic table.