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24-02-2020
Biology

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2. The mass of the nucleus is closest to A. 99% of that in the entire atom B. 1% of that in the atom C. 10–5 of that in the atom D. 10–15 of that in the atom

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olatunbosunadeoke olatunbosunadeoke

24-02-2020

Answer: Option A) 99% of that in the entire atom

Explanation:

An atom consists of three subatomic particles named protons, neutrons and electrons. The protons and neutrons are found in the nucleus of the atom, while the mass of electrons is 1/1840 (negligible).

Thus, the mass of protons and neutrons in the nucleus makes 99% of the entire atom

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