1.
Which is not deflected by magnetic field.
2.
Proton was discovered by
3.
alpha particles are represented by
5.
An electron is moving in Bohr's forth orbit.Its de-brogile wave length is λ what is the circumference of forth orbit.
6.
Rutherford scattering experiment is related to size of
7.
Nuclei tend to have more neutrons than protons at high mask numbers because
8.
Electromagnetic radiation with maximum wave length is
10.
The mass of an atom is constituted mainly by
11.
The atomic number of an element is 35 and mass number is 81 the number of electron in outermost Shell is
12.
The discovery of neutron becomes very late because
13.
Anode rays were discovered by
14.
The number of electron in the nucleus of C12 is
15.
α particle is identical with
16.
Which of the following particle have more electron than Neutron
17.
lightest fundamental particle is
18.
What is the ratio of mass of an electron to the mass of proton
19.
Which one is the following has unit positive charge and one amu mass
20.
Positive ions are formed from the neutral atom by the
21.
The Nucleus of helium contains
22.
The ratio of charge and mass would be greater for
23.
Mass of neutron is approximately.............. times of mass of electron
24.
Number of unpaired electrons in inert gas is
25.
A neutral atom ( Atomic number > 1 ) consist of
27.
The nucleus of the atom consist of
28.
The number of electron in the nucleus of -CONH2 is
29.
Number of electrons in the outermost orbit of the element of atomic number 15 is
30.
Neutron are found in atoms of all elements except in
31.
Who discovered neutron ?
32.
An element has 8 electrons in the valence shell
33.
The number of electron in the nucleus of Cl is
34.
The proton and neutron are collectively called as
35.
Nuclear theory of atom was put forward by
36.
Rutherford experiment prove
37.
The nature of anode rays depends upon
38.
Penetration power of proton is
39.
The number of neutron in heavy hydrogen atom is
40.
Who discovered that cathode rays are made up of elecrtrons
41.
The fundamental particles present in the nucleus of an atom are
42.
The number of electron in one molecule of CO2
43.
6 Proton are found in nucleus of
44.
An elementary particle is
45.
Atom was discovered by
