1.
Which one is the following has unit positive charge and one amu mass
2.
alpha particles are represented by
3.
Positive ions are formed from the neutral atom by the
4.
An element has 8 electrons in the valence shell
6.
Which of the following particle have more electron than Neutron
8.
Electromagnetic radiation with maximum wave length is
9.
The number of electron in one molecule of CO2
10.
A neutral atom ( Atomic number > 1 ) consist of
11.
The number of electron in the nucleus of -CONH2 is
12.
Anode rays were discovered by
13.
The proton and neutron are collectively called as
14.
What is the ratio of mass of an electron to the mass of proton
15.
An electron is moving in Bohr's forth orbit.Its de-brogile wave length is λ what is the circumference of forth orbit.
16.
The number of neutron in heavy hydrogen atom is
17.
The number of electron in the nucleus of C12 is
18.
Mass of neutron is approximately.............. times of mass of electron
19.
The Nucleus of helium contains
20.
Penetration power of proton is
21.
Rutherford experiment prove
22.
The mass of an atom is constituted mainly by
23.
The nature of anode rays depends upon
25.
α particle is identical with
26.
6 Proton are found in nucleus of
27.
lightest fundamental particle is
28.
Who discovered neutron ?
29.
The ratio of charge and mass would be greater for
30.
The discovery of neutron becomes very late because
31.
Number of electrons in the outermost orbit of the element of atomic number 15 is
32.
Nuclei tend to have more neutrons than protons at high mask numbers because
33.
The number of electron in the nucleus of Cl is
34.
An elementary particle is
35.
Which is not deflected by magnetic field.
36.
The atomic number of an element is 35 and mass number is 81 the number of electron in outermost Shell is
37.
Nuclear theory of atom was put forward by
38.
Neutron are found in atoms of all elements except in
39.
The nucleus of the atom consist of
40.
Number of unpaired electrons in inert gas is
41.
Rutherford scattering experiment is related to size of
42.
Proton was discovered by
43.
Who discovered that cathode rays are made up of elecrtrons
44.
Atom was discovered by
45.
The fundamental particles present in the nucleus of an atom are
