2-1 Vocab Review
Name:__________________________
Across
1. a group of atoms united by covalent
bonds
3. when two atoms share electrons
4. the strong attraction between oppositely
charged ions
5. used to indicate the strength of an acid
or base
6. positive subatomic particle
8. the smallest unit of a chemical element
11. when water dissolves a substance
12. negative subatomic particle
Down
2. a substance that is formed by the
bonding of atoms in definite proportions
7. neutral subatomic particle
8. a compound that produces H+ ions when
it dissolves
9. an atom that has gained or lost electrons
10. a compound that produces OH- ions
2-1 Vocab Review
Name:________________________________
Across
1. a group of atoms united by covalent
bonds
3. when two atoms share electrons
4. the strong attraction between oppositely
charged ions
5. used to indicate the strength of an acid or
base
6. positive subatomic particle
8. the smallest unit of a chemical element
11. when water dissolves a substance
12. negative subatomic particle
Down
2. a substance that is formed by the bonding
of atoms in definite proportions
7. neutral subatomic particle
8. a compound that produces H+ ions when
it dissolves
9. an atom that has gained or lost electrons
10. a compound that produces OH- ions