Using the information in the table below, complete the following :

(i) …………… is the metallic element.

(ii) Metal atoms tend to have a maximum of …………… electrons in the outermost energy level.

(iii) Non-metallic elements tend to form …………… oxides while metals tend to form …………… oxides.

(iv) Non-metallic elements tend to be …………… conductors of heat and electricity.

(v) Metals tend to …………… electrons and act as …………… agents in their reactions with elements and compounds.

	X	Y
Normal electronic configuration	2, 8, 7	2, 8, 2
Nature of oxide	Dissolves in water and turns blue litmus red	Very low solubility in water. Dissolves in hydrochloric acid
Tendency for oxidizing and reducing reactions	Tends to oxidise elements and compounds	Tends to act as a reducing agent
Electrical and thermal conductivity	Very poor electrical conductor and poor thermal conductivity	Good electrical conductor and good thermal conductor
Tendency to form alloys and amalgams	No tendency to form alloys	Forms alloys

(i) Y is the metallic element.

(ii) Metal atoms tend to have a maximum of three electrons in the outermost energy level.

(iii) Non-metallic elements tend to form acidic oxides while metals tend to form basic oxides.

(iv) Non-metallic elements tend to be poor conductors of heat and electricity.

(v) Metals tend to lose electrons and act as reducing agents in their reactions with elements and compounds.