Which symbol is used for the element of Tin

A Chronometer is used for measuring _____ ?

May 11, 2020

The horizontal rows of the periodic table are called ______?

June 23, 2020

_______ is the symbol used for the element of Antimony.

May 27, 2020

The oxide of calcium CaO is:

August 26, 2020

Tendency of a metal to lose Electron is called:

August 26, 2020

Which from the following is NOT a conductor?

June 19, 2022