Science, asked by Aryanhelper234, 10 months ago

how to find out mass number when we don't know neutron number??

Answers

Answered by vijaychauhan748591

The atomic mass is the weighted average mass of all the isotopes of an element. If we round off the atomic mass to the nearest whole number and subtract the atomic number from it, we get the number of neutrons.

Answered by Tanujrao36

131

mass Number = 2×atomic number

Ex. = Oxygen(8) = 2×8 =16

maRk it as BRAINLIST answer ❤️

15 thankS = inboX

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