1. This element has 36
protons.
2. This element has an
atomic mass of 23
(rounded).
3. This element is an alkali
metal in period 2.
4. This element is in the
actinide series and in the
6th group from the left.
5. This element has an
atomic number of 74.
6. This element is in the
Lanthanide series in the 8th
group from the left.
7. This element has an
atomic mass of 56
(rounded).
8. This element is an
Alkaline Earth metal in
period 2.
9. This element is in the
Boron Group and period 2.
10. The element is in the
Halogen group and in
period 4.
11. The element is in the
Noble Gas group and in
period 4.
12. This element is a
Transition Metal in the 7th
group from the left and in
period 6.
13. This element is in the
Oxygen Group and in period
3.
14. This element is in the
Nitrogen Group and in
period 4.
15. This element is in the
Carbon Group and in period
3.