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Bohr's Model of an Atom

In the figure...

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.

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Solution

(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

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Standard IX Chemistry

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