Question

Calculate the charge (in coulomb )on a 7^N^14 nucleus.

Answer 1

Use the formula Q=ne where n is the number of electrons and e= 1.6*10^-19 Joules....
Q= 7*1.6*10^-19
Q=11.2*10^-19 C

Answer 2

Charge on nitrogen atom is 11.2*10^-19 C.

Charge on any charged element is the product of its atomic number and unit charge.

Atomic number of an element specifies number of protons in the atom, and hence number of electrons.

Therefore, number of electrons multiplied with charge of one electron, gives the total charge.

The formula is mathematically represented as -

Q = ne, here q is total charge, n is number of electrons and e is unit charge on an electron.

Since the atom in question is nitrogen, it has 7 atomic number and hence electrons.

Keeping the values in equation-

Q = ne

Q = 7*1.6*10^-19

Q= 11.2*10^-19 C

Therefore, charge on nitrogen atom is 11.2*10^-19 C.