Question

1. What is contained in the nucleus of an atom?

A. Protons only
B. Electrons only
C. Electrons and Protons
D. Protons and Neutrons

Answer 1

Protons and neutrons

Step-by-step explanation:

Let's know some

• Protons are positively charged particles
• Neutrons are neutral charged particles
• Electrons are negatively charged particles.

Mass number of a element=No of protons+No of neutrons

Answer 2

Your answer is

D. Protons and Neutrons

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