Chemistry

5. Any group of 2 or more atoms joined together
8. A positively charged atom
9. 1-2 letters that represent an element on the periodic table
11. A negatively charged particle in an atom
12. The amount of matter in an object
13. A negatively charge atom
14. the smallest particle that retains the properties of its element
15. A positively charged particle in an atom
16. The center of an atom made of protons and neutrons held together by the strong force
17. A Neutrally charged particle in an atom

1. An electron that is found in the outermost shell of an atom
2. 2 or more atoms of different elements joined together
3. a bond where electrons are shared between nonmetals
4. the branch of science that deals with the identification of the substances and how they interact, combine, and change
6. A substance which has mass and occupies space
7. The amount of protons in an atom determines its _____
10. A bond where electrons are transferred between a metal and nonmetal