The atom Flashcards by Rameen Rana

Q

Why are protons +1 charge

A

Protons have 2 up quarks and 1 down quark
2/3 + 2/3 – 1/3 = +1

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Q

Why are neutrons 0 charge

A

Neutrons have 1 up quark and 2 down quarks
2/3 – 1/3 – 1/3 = 0

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Q

What are the forces in the nucleus

A

Strong electrostatic forces of attraction
and repulsion

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