how many neutrons are there in atomic nucleus with atomic number of 3
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There are 4 neutrons are in atomic nucleus with atomic number of 3
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lithium atom (Z=3, A=7 amu) contains three protons (found from Z), three electrons (as the number of protons is equal to the number of electrons in an atom), and four neutrons (7 – 3 = 4).
no. of electrons = atomic number =1
no. of proton = atomic number =11
no. of neutrons =Z−A=24−11=13
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