CameraIcon

SearchIcon

MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Mass Number and Representation of Atom

An alpha-part...

Question

An alpha-particle has how many neutrons?

Open in App

Solution

Alpha-particle:
It is a helium atom emitted by radioactive substances.
Its atomic number is 2 and its atomic mass is 4. It is represented as ${}_{2}^{4}H e$ .
It consists of 2 neutrons and 2 protons.
Hence, an alpha particle has 2 neutrons.

Suggest Corrections

thumbs-up

2

Similar questions

Helium atom has an atomic mass of 4u and has two protons in its nucleus. How many neutrons does it have?

Q. How many neutrons are contained in A formed by the reaction?

_{4}^{9} B e (α, n) ⟶ A

Q. How many times an alpha particle is heavier than neutron

Q. An atom of silicon has a mass number of

29

. How many neutrons does it have?

Q. An atom of phosphorus has the symbol

_{15}^{31} P

. How many protons, electrons and neutrons are present in an atom of phosphorus?

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

CHEMISTRY

Watch in App

explore_more_icon

Explore more

Mass Number and Representation of Atom

Standard IX Chemistry

Join BYJU'S Learning Program

CrossIcon