1.
Neutron are found in atoms of all elements except in
2.
Atom was discovered by
3.
Nuclei tend to have more neutrons than protons at high mask numbers because
4.
The number of electron in the nucleus of C12 is
5.
Which is not deflected by magnetic field.
6.
α particle is identical with
7.
Number of electrons in the outermost orbit of the element of atomic number 15 is
8.
Nuclear theory of atom was put forward by
9.
An electron is moving in Bohr's forth orbit.Its de-brogile wave length is λ what is the circumference of forth orbit.
10.
Which of the following particle have more electron than Neutron
11.
The proton and neutron are collectively called as
12.
Rutherford experiment prove
13.
The nature of anode rays depends upon
14.
Number of unpaired electrons in inert gas is
15.
Which one is the following has unit positive charge and one amu mass
16.
The fundamental particles present in the nucleus of an atom are
17.
Anode rays were discovered by
18.
The number of electron in one molecule of CO2
19.
A neutral atom ( Atomic number > 1 ) consist of
20.
Mass of neutron is approximately.............. times of mass of electron
21.
The discovery of neutron becomes very late because
22.
Rutherford scattering experiment is related to size of
23.
Positive ions are formed from the neutral atom by the
24.
What is the ratio of mass of an electron to the mass of proton
25.
The number of electron in the nucleus of -CONH2 is
26.
The mass of an atom is constituted mainly by
27.
Who discovered that cathode rays are made up of elecrtrons
28.
The number of electron in the nucleus of Cl is
29.
The ratio of charge and mass would be greater for
30.
Who discovered neutron ?
31.
The number of neutron in heavy hydrogen atom is
32.
Proton was discovered by
33.
The atomic number of an element is 35 and mass number is 81 the number of electron in outermost Shell is
34.
6 Proton are found in nucleus of
36.
An elementary particle is
37.
The nucleus of the atom consist of
38.
Electromagnetic radiation with maximum wave length is
39.
alpha particles are represented by
41.
An element has 8 electrons in the valence shell
42.
lightest fundamental particle is
44.
Penetration power of proton is
45.
The Nucleus of helium contains
