No. of questions - 40
Time - 30 min
2.
The quantum number that is in no way related to other quantum number is:
3.
The possibility of finding an electron in an orbital was conceived by:
6.
Two electron in an atm of an element cannot have:
7.
The difference between ions and atoms is of:
9.
In the ground state of the H-atom, the electron is
10.
The de Broglie wavelength associated with a material particle is:
14.
When the azimuthal quantum number has the value of 2, the number of orbitals possible are
16.
The ground state term symbol for an electronic state is governed by
17.
Which consists of particle of matter?
19.
The wave nature of electron is verified by
20.
The orbital with maximum number of possible orientations is:
21.
Threshold wavelength depends upon :
22.
According to Dalton’s atomic theory, the smallest particle which is capable of independent existence is:
25.
Compared to the lightest atom the heaviest atom weighs:
26.
The total number of protons present in all the elements upto ′Zn′ in the periodic table is:
28.
X-rays cannot penetrate through a sheet of:
29.
The number of electrons in a neutral atom of an element is equal to its:
30.
The energy of electromagnetic radiation depends on:
33.
According to Bohr’s model of hydrogen atom
36.
Naturally occurring elements are mixtures of:
38.
The atomic number of an element is 17. The number of orbitals containing electron pairs in the valency shell is:
39.
How many electrons can fit into the orbitals that comprise the 3rd quantum shell?
40.
The atomic number of an element is 35 and its mass is 81. The number of electrons in its outermost shell is
