The sum of the number of protons and neutrons present in the nucleus is
called mass number. Find the number of protons in the following element.
(11, 23, 12)
TNSCERT Class 9 General Science Ch4 Atomic Structure
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no. Of protons = the atomic no. Of the element
Hence ur answers are 11, 23, 12
Hence ur answers are 11, 23, 12
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