Chemistry

Which of the following is a noble gas?

The only metal that remains liquid at room temperature is:

What is the chemical symbol for Silver?

Which element is the most abundant in the Earth's atmosphere by volume?

How many protons are there in an atom of Magnesium?

Which of these is a non-metal element?

The horizontal rows in the periodic table are called:

What is the symbol of Iron?

Which element is used in the filament of an electric bulb?

Which element is essential for human bones and teeth?

What is the lightest element in the universe?

The mass number of an element is the sum of:

Which element is a metalloid?

How many groups are there in the Modern Periodic Table?

What is the valency of Helium?

Which non-metal is a good conductor of electricity?

Atomic number 11 belongs to which element?

What is the symbol for Lead?

Which gas is used in advertising glow signs?

The atomic weight of Hydrogen is approximately: