Multiple choice

Atoms may be regarded as comprising of protons neutrons and electrons. If the mass attributed to a neutron were halved and that attributed to the electron were doubled, the atomic mass of 6C12 would

  1. remain approximately the same

  2. be approximately doubled

  3. be approximately halved

  4. be reduced approximately by 25%
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

In 6C12 number of neutrons = 6 and protons = 6. If mass of neutron is halved, the atomic mass will now be 9, in place of initial mass 12 and reduction of 25% will be there.

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