Question

In which of the following systems will the velocity of electron in the first Bohr orbit be maximum?​

Answer 1

Answer:

the velocity of electron in the first Bohr orbit be maximum?

Answer 2

The velocity of electron is given by the formula,

                        v = 2.16 x $10^{6}$ x Z/n m/s

• v is velocity of electron
• Z is the atomic number
• n is the orbit

For first Bohr orbit, n=1

• v ∝ Z / n
• n is 1
• v ∝ Z, ie, greater the atomic number, greater is the velocity of electron in first orbit.

Thus, system with the highest atomic number will have the maximum velocity of electron in the Bohr first orbit.