Atomic mass of aluminium is 27 u and atomic number is 13, find the num

1.	Atomic mass of aluminium is 27 u and atomic number is 13, find the number of protons and number of neutrons in aluminium.
Answer» Since, Atomic number = 13 Therefore, number of proton = 13 We know that; Atomic mass (Mass number) = Number of protons + Number of neutrons Therefore, 27 u = 13 + n Or, n = 27 – 13 = 14 Therefore, number of proton = 13 and number of neutron = 14

Atomic mass of aluminium is 27 u and atomic number is 13, find the number of protons and number of neutrons in aluminium.

Answer»

Since,

Atomic number = 13

Therefore, number of proton = 13

We know that; Atomic mass (Mass number) = Number of protons + Number of neutrons

Therefore,

27 u = 13 + n

Or, n = 27 – 13 = 14

Therefore, number of proton = 13 and number of neutron = 14