Question

A subatomic particle 'A' was discovered by James Chadwick. The charge on 'A' is

• A.
  $-1.6\times {10}^{-19}C$
• B.
  $+1.6\times {10}^{-19}C$
• C.
  $-9.1\times {10}^{-19}C$
• D.
  Zero

Answer 1

The correct option is D

Zero
James Chadwick discovered the subatomic particle known as neutron in 1932. The neutron is a neutral particle found in the nucleus of an atom. It has zero charge.

Hence, the correct answer is option (d).