No. of questions - 40
Time - 30 min
3.
According to Bohr’s model of hydrogen atom
4.
According to Dalton’s atomic theory, the smallest particle which is capable of independent existence is:
5.
Threshold wavelength depends upon :
8.
Compared to the lightest atom the heaviest atom weighs:
9.
Two electron in an atm of an element cannot have:
10.
The de Broglie wavelength associated with a material particle is:
11.
X-rays cannot penetrate through a sheet of:
15.
Naturally occurring elements are mixtures of:
16.
The possibility of finding an electron in an orbital was conceived by:
18.
Which consists of particle of matter?
20.
The total number of protons present in all the elements upto ′Zn′ in the periodic table is:
21.
The orbital with maximum number of possible orientations is:
22.
The wave nature of electron is verified by
24.
The difference between ions and atoms is of:
25.
The ground state term symbol for an electronic state is governed by
26.
The number of electrons in a neutral atom of an element is equal to its:
28.
The atomic number of an element is 17. The number of orbitals containing electron pairs in the valency shell is:
29.
The atomic number of an element is 35 and its mass is 81. The number of electrons in its outermost shell is
30.
The quantum number that is in no way related to other quantum number is:
32.
How many electrons can fit into the orbitals that comprise the 3rd quantum shell?
34.
In the ground state of the H-atom, the electron is
35.
When the azimuthal quantum number has the value of 2, the number of orbitals possible are
36.
The energy of electromagnetic radiation depends on:
