1.
The nature of anode rays depends upon
2.
The fundamental particles present in the nucleus of an atom are
3.
lightest fundamental particle is
4.
The nucleus of the atom consist of
5.
Penetration power of proton is
6.
alpha particles are represented by
8.
Rutherford scattering experiment is related to size of
9.
Atom was discovered by
10.
Rutherford experiment prove
11.
Who discovered that cathode rays are made up of elecrtrons
12.
Nuclear theory of atom was put forward by
13.
Mass of neutron is approximately.............. times of mass of electron
14.
Who discovered neutron ?
15.
6 Proton are found in nucleus of
16.
Number of electrons in the outermost orbit of the element of atomic number 15 is
17.
Nuclei tend to have more neutrons than protons at high mask numbers because
18.
α particle is identical with
19.
The number of electron in one molecule of CO2
21.
An elementary particle is
22.
The discovery of neutron becomes very late because
23.
The number of neutron in heavy hydrogen atom is
24.
The number of electron in the nucleus of -CONH2 is
25.
An electron is moving in Bohr's forth orbit.Its de-brogile wave length is λ what is the circumference of forth orbit.
26.
Neutron are found in atoms of all elements except in
28.
Positive ions are formed from the neutral atom by the
29.
An element has 8 electrons in the valence shell
30.
The proton and neutron are collectively called as
31.
Anode rays were discovered by
32.
The Nucleus of helium contains
33.
Number of unpaired electrons in inert gas is
34.
Which of the following particle have more electron than Neutron
35.
Proton was discovered by
36.
Electromagnetic radiation with maximum wave length is
37.
The number of electron in the nucleus of C12 is
38.
Which is not deflected by magnetic field.
39.
Which one is the following has unit positive charge and one amu mass
40.
What is the ratio of mass of an electron to the mass of proton
41.
The atomic number of an element is 35 and mass number is 81 the number of electron in outermost Shell is
42.
The number of electron in the nucleus of Cl is
43.
A neutral atom ( Atomic number > 1 ) consist of
44.
The mass of an atom is constituted mainly by
45.
The ratio of charge and mass would be greater for
