In the figure given alongside :
(a) Name the shells denoted by A, B and C. Which shell has least energy ?
(b) Name X and state the charge on it.
(c) The above sketch is of ................ model of an atom.
(a) A is for K shell or I shell.
B is for L shell or II shells.
C is for M shell or III shell.
Shell K has the minimum amount of energy.
(b) X is a nucleus; it is positively charged.
(c)The above sketch is of Bohr model of an atom