Fill in the blank:
In Period 3, the most metallic element is …………….. (sodium / magnesium / aluminium)

Give the appropriate term defined by the statement given :

The tendency of an atom to attract electrons towards itself when combined in a covalent compound.

Study the extract of the Periodic Table given below and answer the questions. Give the alphabet corresponding to the element in question. Do not repeat an element. State which element :

(i) Forms an electrovalent compound with G.

(ii) Is non-metallic and has a valency of 2?

(iii) Is an inert gas?

(iv) State the ion of which element will migrate towards the cathode during electrolysis.

Choose the correct answer from the given options given :

The element with highest ionization potential is :

1. Hydrogen
2. Caesium
3. Radon
4. Helium