In helium nucleus, there are....

In helium nucleus, there are.

`2` protons and `2` electrons

`2` nuetrons, `2` protons and `2` electrons

`2` protons and `2` neutrons

`2` positions and `2` protons

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The correct Answer is:

( c) Helium nucleus `rarr ._2 He^4`
Number of protons `= Z = 2`
Number of Neutrons `= A - Z = 2`.

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A2Z-NUCLEAR PHYSICS-Section D - Chapter End Test

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