Question

How many electrons go on each ring of a Bohr Model$?$

Answer 1

According to the Bohr model electrons orbit around the nucleus of an atom somewhat like planets orbit around the sun, but with attraction provided by electrostatic forces in place of gravitational forces. Use the periodic table to determine the number of electrons present in each ring.

Complete step-by-step answer: After the failure of Rutherford to explain the stability of an atom, Bohr proposed an atomic model according to which electrons orbit around the nucleus of an atom somewhat like planets orbit around the sun, but with attraction provided by electrostatic forces in place of gravitational forces.
The Bohr model is a simplistic approach to explain the placement of the subatomic particles of the different elements present in the periodic table.
In the Bohr model arrangement of electrons follows the same pattern as that of the periodic table. Since the periodic table has $2$ elements in the first row or period therefore the first orbit or ring of an atom has $2$ electrons.
The periodic table has $8$ elements in the second row or period therefore the second orbit or ring of an atom has $8$ electrons.
The periodic table has $8$ elements in the third row or period therefore the third orbit or ring of an atom has $8$ electrons.
The periodic table has $18$ elements in the fourth and fifth row or period therefore the fourth and fifth orbit or ring of an atom has $18$ electrons.

Note: You must know the periodic table and the number of elements present in each group or column and period or row for these kinds of questions. Also do not confuse between ring, orbit or shell they are all the same and the answer would be the same for all.