Question

The velocity of an electron in the third orbit of hydrogen atom

Answer 1

Answer:

This is the velocity of the electron in nth orbit in Bohr's model of the hydrogen atom. Putting the values of n (1, 2, 3, .....) we see the velocity in the second orbit will be one half of the first orbit and that in the third orbit will be one-third of that in the first orbit and so on.

Explanation:

For Hydrogen atom.. Z = 1. Fror 3rd orbital. n =3. using... we get.. r 3 = 476.1 pm . Energy of electron in nth orbital can be calculated using.. for n=3 and Z=1

Question

For the electron revolving in third orbit of hydrogen atom,calculate the velocity of electron? ... And no. of revolutions per second.....Quickly answer plz....itz urgent.....first answer will be the best answer

Answer

Salam, for hydrogen atom velocity in nth orbit Vn = e^2 / 2nhε0 or simply => Vn = c/137n => V3 = { 3 * 10^8 }/411 => Vn = 7.3 * 10^5 m/sec number of revolutions = Vn t/2 π Rn Vn = velocity in nth orbit Rn = radius of nth orbit. Rn for hydroge…