How many electrons does calcium have and where are they located at?

Answer 1

The atomic number of calcium is 20 as it has 20 protons and 20 electrons, they are located outside the Nucleus in the orbits known as energy levels, and are commonly known as shells of the atom. in the first energy level there are 2 electrons, in the second energy level there are 8 electron, in the third energy level there are 8 electrons, and in the fourth energy level there are 2 electrons.

Answer 2

Calcium has 20 electrons. These electrons are arranged in various energy levels or shells around the nucleus of the atom. Specifically, calcium has 2 electrons in the first energy level and 8 electrons in the second energy level, with the remaining 10 electrons in the third energy level.