Question

The size of an atom is:
(A) 10-6cm
(B) 10-5cm
(C) 10-2 cm
(D) 10-8 cm

Answer 1

Answer:

The ans is 10-6cm

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Answer 2

Dear Student,

◆ Answer -

(D) 10^-8 cm

● Extra information -

• Radius of the atom is of magnitude 10^-10 m. i.e. 10^-8 cm.
• Atomic radius ranges from 0.3×10^-10 m to 3×10^-10 m.
• Radius of nucleus is of magnitude 10^-15 m. i.e. 10^-13 cm.
• Hence, radius of nucleus is about 10^5 times smaller than that of atomic radius.
• Average radius of nucleus is calculated as R = R0.A^(1/3).

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