Atomic Structure Question 115

Question: Atoms consists of protons, neutrons and electrons. If the mass of neutrons and electrons were made half and two times respectively to their actual masses, then the atomic mass of $ _6C^{12} $ [NCERT 1982]

Options:

A) Will remain approximately the same

B) Will become approximately two times

C) Will remain approximately half

D) Will be reduced by 25%

Show Answer

Answer:

Correct Answer: D

Solution:

No change by doubling mass of electrons however by reducing mass of neutron to half total atomic mass becomes $ 6+3 $ instead of $ 6+6 $ . Thus reduced by 25%.



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