1.
Penetration power of proton is
2.
6 Proton are found in nucleus of
3.
An element has 8 electrons in the valence shell
4.
The atomic number of an element is 35 and mass number is 81 the number of electron in outermost Shell is
5.
Nuclear theory of atom was put forward by
6.
The number of electron in one molecule of CO2
7.
The number of neutron in heavy hydrogen atom is
8.
The mass of an atom is constituted mainly by
9.
The number of electron in the nucleus of Cl is
10.
Atom was discovered by
11.
Neutron are found in atoms of all elements except in
12.
Who discovered that cathode rays are made up of elecrtrons
13.
α particle is identical with
14.
Number of electrons in the outermost orbit of the element of atomic number 15 is
15.
Rutherford scattering experiment is related to size of
16.
What is the ratio of mass of an electron to the mass of proton
17.
The number of electron in the nucleus of C12 is
18.
The number of electron in the nucleus of -CONH2 is
19.
The nucleus of the atom consist of
20.
An elementary particle is
22.
Which one is the following has unit positive charge and one amu mass
23.
Positive ions are formed from the neutral atom by the
24.
A neutral atom ( Atomic number > 1 ) consist of
25.
Which is not deflected by magnetic field.
26.
The proton and neutron are collectively called as
28.
An electron is moving in Bohr's forth orbit.Its de-brogile wave length is λ what is the circumference of forth orbit.
29.
The Nucleus of helium contains
30.
Number of unpaired electrons in inert gas is
31.
Which of the following particle have more electron than Neutron
32.
Electromagnetic radiation with maximum wave length is
34.
The nature of anode rays depends upon
35.
Mass of neutron is approximately.............. times of mass of electron
36.
lightest fundamental particle is
37.
Nuclei tend to have more neutrons than protons at high mask numbers because
38.
The ratio of charge and mass would be greater for
39.
Proton was discovered by
40.
Rutherford experiment prove
41.
The discovery of neutron becomes very late because
42.
Who discovered neutron ?
43.
The fundamental particles present in the nucleus of an atom are
44.
alpha particles are represented by
45.
Anode rays were discovered by
