In the figure given alongside (a) Name the shells denoted by A,B,… - Vidyadip

Question

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

✓

Answer

(a) A is for K shell or I shell.
B is for L shell or II shell.
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.

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Element	Symbol	No. of Protons	No. of Neutrons	No. of Electrons
Sodium	${ }_{11}^{23} NA$	$11$	$P$	$11$
Chlorine	${ }_{17}^{35} Cl$	$Q$	$18$	$17$
Uranium	$R$	$92$	$146$	$92$
$S$	${ }_9^{19} F$	$9$	$10$	$9$