Four elements P,Q, R and S have atomic numbers of 4, 10, 12 and 14 respectively . Which of these electrons is a noble gas?

Similar Questions

An element Z contains 80% of \(^{16} _8\)Z and 20% of \(^{18} _8\)Z. Its relative atomic mass is...

The general formula of alkanoates is? ...

Deliquescent substance are used for ...

Chlorine consisting of two isotopes of mass number 35 and 37 in the ratio 3:1 has an atomic mass of ...

Sulphur (IV) oxide bleaches by ...

CuSO45H2O can be obtained from an aqueous solution of copper (ll) tetraoxosulphate (VI) by...

Which of the following substances is a basic salt? ...

Which of following acids forms normal salts only? ...

The exhaust fumes from a garage in a place that uses petrol of high sulphur content are bound to con...

What is the chemical symbol for Oxygen? ...