Question

If the number of charged and uncharged particles in the center of an atom are 7 and 9 respectively, what is the atomic number of the atom?

Answer 1

The atomic number of an atom is defined as the number of protons in the nucleus of the atom. Since protons are positively charged particles, the number of charged particles in the center of the atom should correspond to the number of protons.

In this case, the number of charged particles is given as 7. Therefore, the atomic number of the atom is 7.