One example of matter is
(1) magnetism
(3) water
(2) heat
(4) radiation

Heat

Explanation:

It is a form of energy which is not a matter.

Water is matter because it can change its form into a solid which is a matter

Magnetism is a matter because it exhibits magnetic properties that make it a matter.

Radiation is matter because it gives off high speed particles which are atoms, and all matter has atoms.

Hope this helps

atomic number of carbon is 6

electronic configuration of carbon is 1s²2s²2p²

orbital diagram of c is as shown here in the image.

elements make up everything, and they combine to make compounds.

the answer is c