Question

1)the element with the highest inonisation potential from the elements of period 1 2 and 3.

2)Nature of the alkaline earth metal of period 3.

3)the electronic config of the element from period 3 whose hydroxide is a weak base

Answer 1

Answer 1. Helium
Because from top to bottom the ionization potential of the elements decreases while it increases from left to right.

Answer 2.With reference to period 3 of the periodic table-State:

1. The type of bonding of the element with electronic configuration 2, 8, 7.

2. The formula of the chloride of the element with electronic configuration 2, 8, 4.

3. The nature of the oxide of the alkaline earth metal in the period.

4. The number of electrons in the penultimate shell of the element with valency
-1.

5. The electronic configuration of the element whose hydroxide is a weak base.


Answer 3 :-