CH. 4 - Chem Patterns Flashcards
(10 cards)
1
Q
element
A
subs. w. only type of atom
2
Q
atom
A
smallest unit of matter
3
Q
period vs group
A
- rows on table
- colums sharing sim. properties
4
Q
atomic number
A
no. of protons in nuc.
5
Q
proton vs electron vs neutron
A
pos
neg
nuet
6
Q
ionic bond
A
force between ions w. opp. charges
7
Q
valence shell
electron
A
- outer shell of atom, det. chem. bonding & reac.
- Elec. on out. shell
8
Q
Duet + Octet rule
A
Atom most stable when:
- 1 shell = 2 elec.
- 2/more = 8 elec.
9
Q
ionic bond properties
A
- solid at room temp
- High melt point
- Brittle cuz lattice
- Dissolve to aqueous sol.
- Conduct elec. when molten
10
Q
aqueous vs lattice charge
A
Lattice - no charge - atom charge cancel eachother out
Aqueous - have charge - atoms r sep.
