Answer:
you will find 3 in aluminium
hydrogen should be b 3
and oxygen is 9
To fill the other element's shell.
The answer is C, because if the copper has a +2 charge, the fluoride must have a -2 charge in order to cancel out.
Explanation:
I think the notation used to represent beta is B
When a sodium atom transfers an electron to a chlorine atom, forming a sodium cation (Na+) and a chloride anion (Cl-), both ions have complete valence shells, and are energetically more stable. The reaction is extremely exothermic, producing a bright yellow light and a great deal of heat energy.
