We spent our last holiday in Greece boasted Marc ​

What? How do I answer this

Explanation:

Answer :

Both the atoms have 6 number of protons.

Both the atoms have the same mass that means both the atoms has 6 number of neutrons.

And one atom has a positive charge means it has 5 number of electrons and one atom has a negative charge means it has 7 number of electrons.

The carbon atom is the atom which has 6 protons and 6 neutrons.

Hence, the two different atoms could be, and and the location of all the subatomic particles is that the neutrons and protons are located in the nucleus and the electrons are located around the nucleus.