A radioactive nuclide emits a β-particle. The atomic number (proton number) of the nucleus number of ______?
Answer: Increases by 1
Explanation
When a radioactive nuclide emits a beta (β) particle, it undergoes beta decay.
In beta decay, a neutron in the nucleus is converted into a proton and an electron (the beta particle).
As a result, the atomic number (proton number) of the nucleus increases by 1.
This question appeared in
Subjects (4 times)
EVERYDAY SCIENCE (2 times)
GENERAL SCIENCE (2 times)
Related MCQs
- An atom has an atomic number 9 and a mass number 19. The number of neutron present in their nucleus are _____?
- A radioactive element emits a particle from the nucleus of one of its atoms. The particle comprises two protons and two neutrons. The name of this process is called?
- After the discovery of atomic number, scientists noted that atomic number can be used to arrange elements in a systematic way. The atomic number was discovered by _______?
- An atom has atomic number 16 and mass number 32, the number of protons is?
- If we have "No" number of any radioactive element then after a period of "n" half-lives the number of atoms left behind is?
- Atomic number of silver is 47. The number of its valence electrons would be _____?
- The atomic mass of aluminium is 27 and its atomic number is 13, the number of neutrons present in aluminium is _______?
- There is a certain pair of numbers such that the sun of twice the first number and thrice the second number is 61. However, when we subtract five times the second number from four times the first number, the answer is 45. Find the second number?
- The symbol denotes the proton number is ______?
- If proton number is 19, electron configuration will be ______?
