The nucleon number and the proton number of a neutral atom of an element are 23 and 11 respectively. How many neutrons are present in the atom?
Answer Details
The nucleon number of an atom is the sum of the number of protons and the number of neutrons in the nucleus of the atom. Therefore, the number of neutrons in the atom can be calculated by subtracting the number of protons (which is given as 11) from the nucleon number (which is given as 23).
So,
Number of neutrons = Nucleon number - Proton number = 23 - 11 = 12
Therefore, there are 12 neutrons present in the atom.
The correct answer is (ii) 12.