If photon of the wavelength 150 pm strikes an atom and one of its inner bound electron is ejected out with a velocity of `1.5 xx 10^(7) ms^(-1)`, calculate the energy with which it is bound to the nucleus.

If photon of the wavelength 150 pm strikes an atom and one of its inne

1.	If photon of the wavelength 150 pm strikes an atom and one of its inner bound electron is ejected out with a velocity of `1.5 xx 10^(7) ms^(-1)`, calculate the energy with which it is bound to the nucleus.
Answer» Energy of the incident photon `= (hc)/(lamda) = ((6.626 xx 10^(-34) Js) (3.0 xx 10^(8) ms^(-1)))/((150 xx 10^(-12) m)) = 13.25 xx 10^(-16) J` Energy of the electron ejected `= (1)/(2) mv^(2) = (1)/(2) (9.11 xx 10^(-31) kg) (1.5 xx 10^(7) ms^(-1))^(2) = 1.025 xx 10^(-16)J` Energy with which the electron was bound to the nucleus `= 13.25 xx 10^(-16)J - 1.025 xx 10^(-16)J` `= 12.225 xx 10^(-16)J = (12.225 xx 10^(-16))/(1.602 xx 10^(-19)) eV = 7.63 xx 10^(3) eV`

Discussion

No Comment Found

Related InterviewSolutions

Which of the four quantum number (n, l, `m_(l), m_(s)`) determine (a) the energy of an electron in a hydrogen atom and in a many electron atom (b) the size of an orbital (c) the shape of an orbital (d) the orientation of an orbital in space ?
Which of the following sate of quantum numbers is not permissible for an electron in an atom? (i) `n = 1,l = 1, m_(l) 0, m_(s) =+ 1//2` (ii) `n = 3, l = 1, m_(1) =- 2, m_(s) =- 1//2` (iii) `n =1, l = 1, m_(l) = 0, m_(s) =+ 1//2` (iv) `n = 2, l = 0, m_(l) = 0, m_(s) = 1`A. `(i),(ii),(iii),(iv)`B. `(ii),(iii),(iv)`C. `(i),(ii),(iv)`D. `(i),(iii),(iv)`
Four set ups as given here were arranged to identify the gas evolved when dilute sulphuric acid was added to zinc granules. The most appropriate set up is : A. IB. IIC. IIID. IV
A compound of vanadium has a magnetic moment of `1.73BM`. Work out the electronic configuration of vanadium in the compound
Name the element in each of the following cases: (i) A bivalent anion of the element having 10 electrons (ii) A trivalent cation of the element having 10 electrons. What is the relationship between the two ions called ?
If the position of the electron is measured within an accuracy of `+- 0.002 nm`. Calculate the uncertainty in the momentum of the electron. Suppose the momentum of the electron is `h//4pi_(m)xx0.05 nm`, is there any problem in defining this value.
The mass of an electron is `9.1 xx 10^(-31) kg`. If its K.E. is `3.0 xx 10^(-25)J`, calculate its wavelength
The kinetic energy of an electron is `4.55 xx 10^(-25)J`. The mass of electron is ` 9.1 xx 10^(-31)kg`. Calculate velocity, momentum and wavelength of the electron.
Calculate the wavelength associated with an electron (mass `9.1 xx 10^(-31)kg`) moving with a velocity of `10^(3) m sec^(-1) (h = 6.6 xx 10^(-34) kg m^(2) sec^(-1))`
What must be the velocity of a beam of electrons if they are to disply a de Broglie wavelength of `100 Å` (mass of electron `= 9.1 xx 10^(-31) kg, h = 6.6 xx 10^(-34) J s`)?

If photon of the wavelength 150 pm strikes an atom and one of its inner bound electron is ejected out with a velocity of `1.5 xx 10^(7) ms^(-1)`, calculate the energy with which it is bound to the nucleus.

Discussion

No Comment Found

Related InterviewSolutions

Reply to Comment