Question

pls ans the question...​

Answer 1

Answer:

Answer 1 = ( n+1 ) = 5

has 5s, 4p and 3d orbitals with two, six and ten electrons respectively. Therefore, the total number of electrons present is 18.

Answer 2 = First according to the question kinetic energy of electron is equal to the kinetic energy of proton. Now we know the formula for de-Broglie wavelength. In the formula for de-Broglie wavelength, there are some fixed values we don’t need those value we need to omit those and find a proportionality relation for de-Broglie wavelength. Now we need to compare this relation to know the answer.

Formula used: λ=h/ √2mK.