1.
Penetration power of proton is
2.
Rutherford experiment prove
3.
An elementary particle is
4.
lightest fundamental particle is
5.
Atom was discovered by
6.
The Nucleus of helium contains
7.
Neutron are found in atoms of all elements except in
8.
6 Proton are found in nucleus of
11.
Number of unpaired electrons in inert gas is
12.
Which of the following particle have more electron than Neutron
13.
An electron is moving in Bohr's forth orbit.Its de-brogile wave length is λ what is the circumference of forth orbit.
14.
The proton and neutron are collectively called as
15.
The atomic number of an element is 35 and mass number is 81 the number of electron in outermost Shell is
16.
Nuclei tend to have more neutrons than protons at high mask numbers because
17.
Mass of neutron is approximately.............. times of mass of electron
18.
Number of electrons in the outermost orbit of the element of atomic number 15 is
19.
Rutherford scattering experiment is related to size of
20.
The nucleus of the atom consist of
21.
α particle is identical with
22.
Electromagnetic radiation with maximum wave length is
23.
A neutral atom ( Atomic number > 1 ) consist of
24.
Who discovered that cathode rays are made up of elecrtrons
25.
Anode rays were discovered by
26.
The number of electron in the nucleus of C12 is
27.
Positive ions are formed from the neutral atom by the
28.
The discovery of neutron becomes very late because
29.
Who discovered neutron ?
30.
What is the ratio of mass of an electron to the mass of proton
31.
Which one is the following has unit positive charge and one amu mass
32.
The number of electron in the nucleus of Cl is
33.
Which is not deflected by magnetic field.
34.
alpha particles are represented by
35.
The ratio of charge and mass would be greater for
36.
The number of neutron in heavy hydrogen atom is
37.
Proton was discovered by
38.
Nuclear theory of atom was put forward by
39.
The number of electron in the nucleus of -CONH2 is
40.
The fundamental particles present in the nucleus of an atom are
41.
An element has 8 electrons in the valence shell
42.
The mass of an atom is constituted mainly by
43.
The number of electron in one molecule of CO2
45.
The nature of anode rays depends upon
