Given below are two statements. Statement I: According to Bohr's model of an atom, qualitatively the magnitude of velocity of electron increases with decrease in positive charges on the nucleus as there is no strong hold on the electron by the nucleus. Statement II: According to Bohr's model of an atom, qualitatively the magnitude of velocity of electron increases with decrease in principal quantum number. In the light of the above statements, choose the most appropriate answer from the options given below:

Question

Given below are two statements. Statement I: According to Bohr's model of an atom, qualitatively the magnitude of velocity of electron increases with decrease in positive charges on the nucleus as there is no strong hold on the electron by the nucleus. Statement II: According to Bohr's model of an atom, qualitatively the magnitude of velocity of electron increases with decrease in principal quantum number. In the light of the above statements, choose the most appropriate answer from the options given below: (A) Both Statement I and Statement II are false (B) Both Statement I and Statement II are true (C) Statement I is false but Statement II is true (D) Statement I is true but Statement II is false

Tardigrade Admin · Accepted Answer

Velocity of electron in Bohr's atom is given by

V \propto \frac{Z}{n}

Z =

atomic number of atom, corresponds to

+

ve charge so as

Z

increase velocity increases so statement-I is wrong.
and as '

n

' decreases velocity increases so statement-II is correct.

Both Statement I and Statement II are false

Both Statement I and Statement II are true

Statement I is false but Statement II is true

Statement I is true but Statement II is false

Velocity of electron in Bohr's atom is given by V∝nZ​ Z= atomic number of atom, corresponds to + ve charge so as Z increase velocity increases so statement-I is wrong. and as 'n' decreases velocity increases so statement-II is correct.

Velocity of electron in Bohr's atom is given by
$V \propto \frac{Z}{n}$
$Z =$ atomic number of atom, corresponds to $+$ ve charge so as $Z$ increase velocity increases so statement-I is wrong.
and as ' $n$ ' decreases velocity increases so statement-II is correct.