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(C) According to Bohr's model of the hydrogen atom:$1$. The centripetal force required for the circular motion of the electron is provided by the elec

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Mass of proton is ignored

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(C) According to Bohr's model of the hydrogen atom:$1$. The centripetal force required for the circular motion of the electron is provided by the electrostatic force of attraction between the nucleus and the electron,given by $\frac{mv^2}{r} = \frac{Ze^2}{r^2}$. Thus,option $A$ is correct.$2$. Bohr postulated that the angular momentum of an electron in a stationary orbit is quantized,given by $mvr = \frac{nh}{2\pi}$. Thus,option $B$ is correct.$3$. In the Bohr model,the nucleus is assumed to be stationary,but the mass of the proton (nucleus) is not ignored; rather,the model assumes the nucleus is infinitely heavy compared to the electron. However,stating that the 'mass of the proton is ignored' is technically incorrect as the model relies on the electrostatic interaction between the proton and electron.Therefore,option $C$ is the incorrect statement.

List-$I$	List-$II$
$(1)$ Lyman	$(A)$ $n = 5 \to n = 4$
$(2)$ Paschen	$(B)$ $n = 3 \to n = 2$
$(3)$ Brackett	$(C)$ $n = 6 \to n = 5$
$(4)$ Balmer	$(D)$ $n = 4 \to n = 3$
	$(E)$ $n = 7 \to n = 6$

Which one of the following is incorrect for the Bohr model of the hydrogen atom?

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