Periodic Table

5. A negatively charged ion
7. A subatomic particle that has a positive charge
9. The science that studies what everything is made of and how those things can mix and change to make new stuff
11. Anything that has mass and takes up space
14. An organized arrangement of elements according to their atomic number
16. An atom that has become charged by gaining or losing electrons

1. A positively charged ion
2. Electrons found in the outermost shell of an atom
3. The area of an atom where protons and neutrons are found
4. A group of elements on the periodic table that share similar chemical properties
6. A subatomic particle that has no charge
8. A vertical column on the periodic table, where all elements within that column share similar chemical properties
10. All elements in a row that have the same number of electron shells
12. A pure substance that is made of one kind of atom, and it cannot be broken down into simpler substance
13. The smallest unit of matter
15. A subatomic particle that has a negative charge