The phenomenon of radioactivity is assoc...

The phenomenon of radioactivity is associated with a)Decay of nucleus b)Fussion of nucleus c)Emission of electrons or protons d)Rearragement in the in the extra nuclear electron

binary fission

nuclear fission

nuclear fusion

decay fo unstable nuclei

Text Solution

Verified by Experts

The correct Answer is:

Radioactivity arises out of decay of unstable nuclei.

Topper's Solved these Questions

NUCLEAR AND RADIO CHEMISTRY
DINESH PUBLICATION|Exercise Selected Straight Objected Type MCQs|26 Videos
NUCLEAR AND RADIO CHEMISTRY
DINESH PUBLICATION|Exercise Linked Comprehension Type MCQs|9 Videos
NUCLEAR AND RADIO CHEMISTRY
DINESH PUBLICATION|Exercise Evaluate Yourself|45 Videos
NOMENCLATURE OF ORGANIC COMPOUNDS
DINESH PUBLICATION|Exercise MCQs|13 Videos
ORGANIC CHEMISTRY - SOME BASIC PRINCIPLES & TECHNIOUES
DINESH PUBLICATION|Exercise PURIFICATION & CHARACTERISATION OF ORGANIC COMPOUNDS|38 Videos

Similar Questions

Explore conceptually related problems

The isotopes of an element differ in (1) The number of neutrons in the nucleus (2) The charge on the nucleus (3) The number of extra-nuclear electrons ( 4) Both the nuclear charge and the number of extranuclear electrons.

A radioactive decay can form an isotope of the original nucleus with the emission of particles

Originally the radioactive beta decay was thought as a decay of a nucleus with the emission of electrons only (Case I). However, in addition to the electron, another (nearly) massless and electrically neutral particle is also emitted (Case II). Based on the figure below, which of the following is correct:

Why is atomic number always calculated from the number of protons in the nucleus and not from the number of electrons present in the extra nuclear part?

Total number of electrons, protons and neutrons present in the nucleus of ._(92)U^(238) is

A nucleus has atomic number 11 and mass number 24. State the number of electrons, protons and neutrons in the nucleus

In a radioactive decay, a nucleus is transformed into another with the emission of a positron. In this process the neutron-proton ratio

Assertion : In a radioactive disintegration, an electron is emitted by the nucleus. Reason : Electrons are always present inside the nucleus.

DINESH PUBLICATION-NUCLEAR AND RADIO CHEMISTRY-Revision Questions from Competitive Exams

Which of the following are easily stopped by air ?
Text Solution
|
beta- particle in radioactivity is emitted by:
Text Solution
|
The phenomenon of radioactivity is associated with a)Decay of nucleus...
Text Solution
|
The first artifical disintegration of an atomic nucleus was achieved b...
Text Solution
|
The radioisotope , tritium (""(1)^(3)H) has a half-life of 12.3 years....
Text Solution
|
The radioactive nuclide .(90)^(234) Th shows two successive beta- dec...
Text Solution
|
The half life of radioactive isotope is 3 hour. If the initial mass of...
Text Solution
|
How may alpha- and beta- particles will be emitted when .(90)Th^(232) ...
Text Solution
|
A overset(-2beta)to overset(-alpha)to C. Relation between A and C is
Text Solution
|
It t(1//2) of A is 1000 yrs, then 'A' left after t=2000 years
Text Solution
|
If N(0) =1 gm then after how many half lives N t will be 0.25 gm ?
Text Solution
|
""(92)^(235)U+X to Ba +Kr +3 ""(1)^(0)n X is
Text Solution
|
Alpha particles are
Text Solution
|
Most radioactive is
Text Solution
|
Which of the following isotopes of uranium is most radioactive ?
Text Solution
|
In the nuclear reaction ""(13)Al^(27)+""(2)He^(4) to ""(14)X^(30)+"...
Text Solution
|
The product obtained after positron emission from ""(31)Ga^(68) is
Text Solution
|
One gm of an element decays by beta-emission to 0.125 gm in 200 years...
Text Solution
|
Isotopes are
Text Solution
|
The noble gas used in atomic reactors is
Text Solution
|