Fill in the blanks 

(a) .................  refers to the number of atoms in the molecule of an element. 

(b) The most abundant element in the earth’s crust is .................... 

(c) A metal which is a liquid at room temperature is ...................

(d) The most abundant element in the atmosphere is ............................ 

(e) A metal which is a poor conductor of electricity is ....................... 

(f) A diatomic gaseous element is .................. 

(g) A liquid non-metal is ..................

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1 Answers

(a) Atomicity refers to the number of atoms in the molecule of an element. 

(b) The most abundant element in the earth’s crust is oxygen. 

(c) A metal which is a liquid at room temperature is mercury. 

(d) The most abundant element in the atmosphere is nitrogen. 

(e) A metal which is a poor conductor of electricity is tungsten. 

(f) A diatomic gaseous element is oxygen. 

(g) A liquid non-metal is bromine.

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