Find the number of neutrons in silver having an atomic mass of 107.86. 

Silver has an atomic number of 47. The nucleus's number of protons or the number of electrons outside the nucleus is indicated by the atom's atomic number. The total number of protons and neutrons in the nucleus is represented by the mass number. By subtracting the difference between the mass number and the atomic number, one may determine the number of neutrons.

The number of protons in the nucleus is indicated by the atomic number.
The number of electrons orbiting outside the nucleus is also indicated by the atomic number.
The quantity of protons and electrons in a neutral atom is equal.

The nucleus's total amount of protons and neutrons is indicated by the mass number.
By adding the total number of protons and neutrons in the nucleus, one may get the mass number.
Silver has an atomic number of 47, meaning there are 47 protons in the nucleus.
Additionally, the quantity of protons is equal to the number of electrons.
The mass number is 107.86, which denotes that there are a total of 107.86 protons and neutrons in the nucleus, or around 108.
So, the Proton number plus the neutron number equals the mass number.
108=47 + neutron number
Neutron count = 61

Hence, the correct answer is option C.