Question

No. of electrons and neutrons in an atom are 3 and 4 respectively. Find its 1. Atomic number. 2. Mass number?
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Answer 1

Answer:

Mass number = 23 and atomic number = 11.

Atomic number = Number of electrons =Number of protons =11.

Number of neutrons = Mass number − atomic number =(23−11)=12.

Explanation:

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Answer 2

Answer:

Mass number = 23

Mass number = 23 atomic number = 11.

Mass number = 23 atomic number = 11. Atomic number = Number of electrons =Number of protons =11.

Mass number = 23 atomic number = 11. Atomic number = Number of electrons =Number of protons =11. Number of neutrons = Mass number − atomic number =(23−11)= 12