Question

An element has atomic mass 24 .If it has 12 neutrons so how mamy protons,electronn,atomic number,electronic configuration and name of element

Answer 1

atomic mass (A)=no. of protons+no. of neutrons

24=no. of protons+12

no. of protons=12

no. of electrons =no. of protons

no.of electrons=12

atomic number (z)=12

electronic configuration :1s2 2s2 2p6 3s2

name of element :Magnesium

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