1. ns1
2. ns2
3. ns2np1
4. ns1np2
ns1
1. CaSO4
2. CaCl2
3. MgCl2
4. HCl
HCl
1. Magnesium
2. Beryllium
3. Sulphur
4. Magnalium
Beryllium
1. 70 g
2. 80 g
3. 90 g
4. 170 g
170 g
1. Mg
2. Ba
3. Rb
4. Ra
Rb
1. Li
2. K
3. Rb
4. Na
Na
1. 4
2. 1
3. 3
4. 2
4
1. +4
2. +1
3. +2
4. +3
+2
1. Sodium oxide
2. Potassium
3. Sodium sulphate
4. Potassium superoxide
Potassium superoxide
1. Alkaline
2. Neutral
3. Acidic
4. Amphoteric
Alkaline