Science, asked by arunkewat591, 8 months ago

Name the element and number of neutrons in the symbol X40 & 18​

Answers

Answered by Anonymous
3

Explanation:

  • The mass number is the sum of protons and neutrons. This means to find the number of neutrons you subtract the number of protons from the mass number. On the periodic table, the atomic number is the number of protons, and the atomic mass is the mass number.
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