Tightly curved horns are the characteristically found

Which of the following chemical substances has its formula incorrectly paired?

An element has an atomic number of 17 and a mass number of 36. How many neutrons are in its nucleus?

What is the chemical name of Baking Soda ? 

Protons were discovered by

Lexan is a man-made polymer used for making

Which is the third lightest halogen?

When pressure is increased the melting point of ice –

The Nuclear Fusion on the Sun’s surface result into formation of Atoms.

Which of the following metals is the lightest in the periodic table of elements?

The Egg shell is made up of which of the following?