Should be an igneous rock.
When more than one polyatomic ion appears
Answer:
Electrons are located in an electron cloud, which is the area surrounding the nucleus of the atom. There is usually a higher probability of finding an electron closer to to the nucleus of an atom.
Explanation:
Answer:the first column has one valance electron the second has 2 and so on.
The only exception is helium that has 2.
Explanation: