Answer:
C
Explanation:
Similar characteristics depend on columns.
Flourine and Chlorine are both halogens so they will have similar properties.
The number of protons in the nucleus of the atom, I believe. c:
Answer:
If two atoms get close enough together then the electrons of each atom will be attracted to both nuclii
Explanation:
Answer:
Atoms come together to form molecules because of their electrons. Electrons can join (or bond) atoms together in two main ways. When two atoms share electrons between them, they are locked together (bonded) by that sharing. These are called covalent bonds
