Atomic structures

Question 1

What is the concept of quantization?

Answer 1

The electrons don’t lose their energy in the form of electrons but instead, they are lost in the form of packets.

Question 2

Value of Rydberg’s constant?

Answer 2

109677 per centimeter

Question 3

Value of Plank’s constant?

Answer 3

6.626*10^34J.s

Question 4

Ionization energy of H?

Answer 4

1312 KJmol^-1

Question 5

What is the quantization of angular momentum?

Answer 5

The momentum of an electron in an orbit is not possible if it is not equivalent to nh/2pi

Question 6

Why does an electron not jump into the nucleus?

Answer 6

The minimum energy of an electron lies in the first shell.
For an electron to jump, it needs to be in an orbital: 1st shell doesn’t have an orbital.

Question 7

Spontaneous emission of certain elements having unstable mass is?

Answer 7

Radiation

Question 8

The e/m value of cathode and anode rays depends on:

Answer 8

The nature of gas used and
the nature of cathode.

Question 9

In multielectron atoms, the orbital having lower (n+l) or equal to lower value of n has:

Answer 9

lower energy

Question 10

difference between electromagnetic and matter waves?

Answer 10

EW needs no medium for propagation lamda equals c/nu [(v) let’s pretend this is the symbol ;) ] speed equal to light
MW needs a medium for propagation lamda given by (h/mv)
speed less than the speed of light.

Question 11

isodiapher?

Answer 11

atoms:
same difference between proton nad neuron

Question 12

isosters

Answer 12

molecules:
same:
at no
no of electrons
eg: CO2