Which scientist discovered the radioactive element radium?

Absolute zero is the temperature at which an ideal gas would have zero volume, what is its value?

April 13, 2022

During winter in cold countries, the ____ is mixed to melt the ice on the icy roads.

May 24, 2021

In a very low temperature which from the following will freeze at last?

May 24, 2021

_________ is anything that takes up space and has mass.

June 18, 2022

Which of the following hydrocarbons is more reactive?

June 22, 2020

What are Columns in Periodic table called?

September 30, 2021