Atomic Structure

Question 1

Radiation types ranges and uses

Answer 1

Question 2

mass of electron?

Answer 2

9.1 x 10^-31 kg

Question 3

the order of wavelnetgh of the different of EM waves

Answer 3

increasing order of wavelentgh

C G X U V I M R

Question 4

Max KE formula for photoelectric effect

Answer 4

Max KE = work function - incident light energy

Question 5

stopping potential formula

Answer 5

V(stopping) = max KE/e(charge of electron)

Question 6

angular momentum relation with orbitan number

Answer 6

mvr = nh/2pi

Question 7

radius of nth orbit formula

Answer 7

(n^2)/Z x 0.529 x 10^-10 m

Question 8

velocity of electron in nth orbit

Answer 8

z/n x 2.18 x 10^6 m/s

Question 9

Time period of revolution formula

Answer 9

T = 2πr/v

Question 10

TE,KE,PE relation

Answer 10

TE = 1/2 PE = -KE

Question 11

TE formula

Answer 11

• Z^2/n^2 x 13.6 eV

Question 12

wavelentgh of electron transition formula(with rydbergs constant)

Answer 12

https://imgur.com/z4p3KLE

Question 13

Rydbergs constant value

and 1/R value

Answer 13

109678 cm^-1

912 Angstrom

Question 14

de broglie’s wavelentgh for electron shortcut

Answer 14

Question 15

no. of orbitals in nth shell:-
max no. of electron in a shell:-
no of electron in a shell:-
no of electron in a subshell:-

Answer 15

no. of orbitals in nth shell:- n^2
max no. of electron in a shell:- 2n^2
no of electron in a shell:-n
no of electron in a subshell:- 2(2l+1)

Question 16

orbital angular momentum with ‘l’

Answer 16

Question 17

value of l for s,p,d,f shells

Answer 17

for s= 0
for p= -1,0,1
for d= -2,-1,0,1,2
for f= -3,-2,-1,0,1,23

Question 18

whats pauli’s exclusion principle

Answer 18

no two electron can have the same set of all the four quantum number

Question 19

Whats Aufbau rule

Answer 19

The electron are filled are filled up in various subshell in order of their increasing energies

Question 20

whats hund’s rule

Answer 20

no electron pairing takes place in orbitals of a subshell until each orbital is occupied by one electron is parallel spin

Question 21

number of radial nodes=
number of angular/nodal planes=
total number of nodes=

Answer 21

number of radial nodes= n-l-1
number of angular/nodal planes= l
total number of nodes= n-1

Question 22

number of spectral lines

Answer 22