MyQuestionIcon

1

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

Radioactivity

is a radioact...

Question

is a radioactive element.

A

Uranium

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

B

Sodium

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

Magnesium

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A Uranium
The elements that spontaneously emits high penetrating nuclear radiations are known as radioactive elements. They have high atomic number. Eg: Uranium, thorium, polonium, etc.

Suggest Corrections

thumbs-up

1

Similar questions

Q. Radioactivity of a radioactive element remains

1 / 10

of the original radioactivity after

2.303 s

. The half life period of radioactive element in second is:

Q. 10grams of a radioactive element is disintegrated to 1gram in 2.303minutes. The half-life (in minutes) of that radioactive element is:

Q. Assertion : The average life of a radioactive element is infinity.
Reason : As a radioactive element disintegrates, more of it is formed in nature by itself.

Q. The half-life period of a radioactive element is 14 hours. The fraction of the radioactive element that disintegrates in 56 hours is:

Q. The half life period of a radioactive element A is the same as the mean life of another radioactive element B. Initially both of them have the same number of atoms. The radioactive element B decays faster than A. Explain why.

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Radioactive Substances

CHEMISTRY

Watch in App

explore_more_icon

Explore more

Standard IX Chemistry

Join BYJU'S Learning Program

CrossIcon