Chemistry Study Guide

4. the outcome of the chemical reaction
6. a reaction that occurs when a layer of metal is bonded to another substance, usually metal
7. have completely full orbitals
9. when energy is absorbed
10. rows on the periodic table
11. the combination of 2 or more different atoms
13. when energy is released in the form of heat
15. the dense and positively charged center of an atom
18. the total amount of mass stays the same through a chemical reaction
23. can conduct heat and electricity, most are solid
24. the negatively charged particles that orbit the nucleus
26. the smallest part of a substance, can't be broken down further

1. mix of both metals and non-metals attributes
2. columns on the periodic table
3. the electrons in the outermost orbital
5. the number of protons or electrons an atom has
8. the positively charged particles in the nucleus of an atom
12. the two letter abbreviation of the element name
14. combination of one or more atoms of any kind
16. the smallest an element or any matter can be broken down to
17. created the periodic table of elements
19. the sum of the atomic number and the number of neutrons
20. regions of space outside the nucleus of an atom where electrons are found
21. can easily be broken, can't conduct heat or electricity well
22. the starting substances
25. the particles in the nucleus with no charge