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Question

Match the following elements with their respective mass numbers:
ElementsMass number(a) Hydrogen(i) 6(b) Beryllium(ii) 8(c) Oxygen(iii) 1(d) Lithium(iv) 16


A
(a) - (iii)
(b) - (iv)
(c) - (ii)
(d) - (i) 
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B
(a) - (iii)
(b) - (iv)
(c) - (i)
(d) - (ii)
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C
(a) - (iii)
(b) - (ii)
(c) - (iv)
(d) - (i)
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D
(a) - (iii)
(b) - (ii)
(c) - (i)
(d) - (iv)
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Solution

The correct option is C (a) - (iii)
(b) - (ii)
(c) - (iv)
(d) - (i)
Elements with their respective mass numbers and atomic numbers are given in the following table: 

ElementsMass numberHydrogen1Beryllium8Oxygen16Lithium6
 
Atomic number = number of protons.
Mass number = number of protons + number of neutrons.
Both atomic number and mass number of hydrogen atom is 1 since it is devoid of neutrons.

Chemistry

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