Compound N reacts with sodium metal to produce a gas that gives a 'pop' sound with a burning splint N also react with ethanoic acid to give a sweet smelling...

A solid substance with high melting and boiling points is likely to be a/an

If X is a group lll element, its oxide would be represented as

Which of the following species correctly represented an ion of M with 13 protons and 10 electrons?

The energy change which accompanies the addition of an electron to a gaseous atom is

Which of the following equations represents beta decay?

Which of the following molecules has a linear shape?

Which of the following statements about chlorine and iodine at room temperature is correct?

Which of the following elements is a d-block element?