Which ion contains no electron -a) Lib) He c) Na ,d) Ca27. Na contains – InterviewSolution

1.

Which ion contains no electron -a) Lib) He c) Na ,d) Ca27. Na contains- a) 22 protons, b) 11 neutrons, c) 22 neutrons, d) 44 neutrons.

Answer»

He has only 2 elections , and when it has +2 charge , then no. of electrons will be 0.

so, option b

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