Question

1. Name the three sub atomic particles of an atom.

2. Helium atom has an atomic mass of 4u and two protons in its nucleus. How many neutrons does it have?​

Answer 1

Answer:

proton neutron and electron

2neutrons babes

Explanation:

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Answer 2

Answer:

1. Three sub atomic particles of an atom are

(a) protons

(b) neutrons

(c) electrons