Periodic Table

1. Atoms of the same element that have a different number of neutrons
5. The bond between nonmetals
7. An element whose properties are intermediate between those of metals and solid nonmetals or semiconductors
8. elements and/or compounds that when put together are unable to react chemically
11. The bond between a metal and a non metal
13. How likely an element is to form bonds with other elements
15. A stable subatomic particle occurring in all atomic nuclei, with a positive electric charge equal in magnitude to that of an electron, but of opposite sign
16. A positively charged ion
18. They are reactive nonmetallic elements that form strongly acidic compounds with hydrogen from which simple salts can be made
20. an atom with a charge

2. Rows across on the periodic table
3. Elements that are shiny good conductors and found on the left of the periodic table
4. Columns up and down on the periodic table
6. A substance that cannot be broken down into a simpler substance by ordinary chemical means
9. Elements that are dull brittle and often a gas at room temperature
10. A stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids
12. A region of probability in which the electron can be found
14. A negatively charged ion
17. The smallest particle of an element that retains the elements properties
19. A subatomic particle of about the same mass as a proton but without an electric charge, present in all atomic nuclei except those of ordinary hydrogen