Consider a neutral atom with 30 protons and 34 neutrons. The atomic number of the element is

The atomic number of an element is equal to the number of protons in the nucleus of its atom. In this case, the neutral atom has 30 protons, so the atomic number of the element is 30.

The atomic number of an element is equal to the number of protons in its nucleus. In this case, the neutral atom has 30 protons, so the atomic number of the element is 30.