1
Q
Atomic number
A
Protons
2
Q
Atomic mass
A
protons & neutrons
3
Q
Anion
A
Negative ions
Non-metals
4
Q
Cation
A
Positive ions
metals
5
Q
Isotopes
A
Same atomic number, different mass number
Diff. no. of neutrons
6
Q
How do you write isotopes?
A
[Element][new mass. no]
7
Q
Electron Configuration
Normal
A
2,8,18,32
8
Q
Electron Configuration
Complicated one
A
1s2k 2s2, 2p6, 3s2, 3p6, 4s2, 3d10, 4p6, 5s2
9
Q
Transition Metals
A
Switch 4s with 3d
4s2 electrons are filled up first
10
Q
Copper Electronic Configuration
A
1s2 2s2 2p6 3s2 3p6 3d10 4s1
11
Q
Chromium Electronic Configuration
A
1s2 2s2 2p6 3s2 3p6 3d5 4s1
12
Q
Where are periods and what do they represent?
A
Rows
Number of shells
