BIOMOLECULES

2. the type of bonding that occurs when atoms transfer electrons
3. the smallest particle of an element which cannot be broken down
6. the combining of atoms by rearranging electrons
9. the negative particle in the atom; found in energy levels
11. a charged particle formed when atoms gain or lose electrons
14. the positive particle in an atom
15. the smallest group of elements; have some properties of metals and some properties of nonmetals
16. the smallest particle of a compound
18. a substance composed only of itself; made of only one kind of atom

1. the type of bonding that occurs when atoms share electrons
4. the electrons in the outer energy level that will participate in chemical bonding
5. a substance formed when two or more elements chemically combine
7. the neutral particle in the nucleus of an atom
8. the group of elements found on the far right side of the periodic table
10. means that an atom has 8 electrons in its outer energy level
12. the energy that holds atoms together after chemical bonding
13. the group of elements that will not combine with anything else
17. the largest group of elements on the periodic table