Answers

2016-01-11T13:07:17+05:30
Atomic number = 13
electron = 13
proton = 13
atomic mass = 27
neutrons = 27-13 = 14
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2016-01-11T13:13:19+05:30
Element with atomic no. 13 is ALUMINIUM (Al).
No. of electrons = No. of protons = Atomic no. = 13
No. of Neutrons = Mass no.-Atomic no. = 27-13 = 14
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