1 elements
2 they have same number of valence electrons
3 period
I Believe the answer to your question is C.Protista and D.Animalia and B.Eubacteria
element is made up of only one type of atoms.
it is pure form of matter
example hydrogen, oxygen, carbon etc
Answer:
No.
Explanation:
Mercury is not a solution. It is a detonator.
