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As we know that atomic mass =no. of neutron +no. of proton in it's nucleus. let no. of proton is x. 23=x+12 x=23-12=11. therefore 11 proton will be in that atom's nucleus. and also as we know that. no. of proton =atomic number. therefore atomic number of that atom will be 11. hence that atom will be sodium (Na) because sodium's atomic number is 11.
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Answers & Comments
atomic mass =no. of neutron +no. of proton in it's nucleus.
let no. of proton is x.
23=x+12
x=23-12=11.
therefore 11 proton will be in that atom's nucleus.
and also as we know that.
no. of proton =atomic number.
therefore atomic number of that atom will be 11.
hence that atom will be sodium (Na)
because sodium's atomic number is 11.
if my answer is helpful for you then please mark as brain liest