Chemistry, asked by lalitamunda150, 9 months ago

what is mass number? Also write the formula.​

Answers

Answered by kumar3017
1

Answer:

The mass number (symbol A, from the German word Atomgewicht [atomic weight]), also called atomic mass number or nucleon number, is the total number of protons and neutrons (together known as nucleons) in an atomic nucleus. ... The mass number is different for each different isotope of a chemical element

Answered by Anonymous
15

Answer:-

Together, the number of protons and the number of neutrons determine an element's mass number: mass number = protons + neutrons. If you want to calculate how many neutrons an atom has, you can simply subtract the number of protons, or atomic number, from the mass number.

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