The answer would be 2 in ths case, bonding has to do with the electron orbitals.
The one in the middle since when ur going down it’s more quicker anc faster .
Answer:
Changes in Properties Changes in properties result when new substances form. For instance, gas production, formation of a precipitate, and a color change are all possible evidence that a chemical reaction has taken place. ... Change in Color A color change can signal that a new substance has formed.
Explanation:
