Chemistry

3. A column of elements in the periodic table with similar properties
4. The breakdown of a metal resulting from reactions with chemicals in its environment
6. The elements (except hydrogen) in the first column of the periodic table
8. A bond that results from the sharing of outer electrons between non-metal atoms
10. A numerical scale ranging from 0 to 14 that is used to compare the acidity of solutions
12. The rapid reaction of a substance with oxygen to produce oxides and energy; burning
14. A molecule consisting of only two atoms of either the same or different elements
16. An aqueous solution that conducts electricity, tastes sour, turns blue litmus red, and neutralizes bases
18. A measure of how acidic or basic a solution is
19. A positively charged ion

1. The elements in the seventeenth column of the periodic table
2. A pure substance formed from two or more non-metals
5. A pure substance that cannot be broken down into simpler substances
7. The simultaneous strong attraction of positive and negative ions in an ionic compound
9. A compound that separates into ions when it dissolves in water, producing a solution that conducts electricity
11. A solid formed from the reaction of two solutions
13. Neither acidic nor basic; with a pH of 7
15. A pure substance composed of two or more elements in a fixed ratio
17. A row of elements in the periodic table