Using the information below about X and Y – complete the following questions :

X-2,8,7	Y-2,8,2
Dissolves in water and turns blue litmus red	Very low solubility in water. Dissolves in HCl
Tends to oxidise elements and compounds	Tends to act as a reducing agent
Poor electrical and thermal conductivity	Good electrical and thermal conductivity
No tendency to form alloys	Forms alloys

(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.

(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 bad conductors of heat and electricity.

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