Here is the charge each atom is likely to make when it bonds with other atoms:
-
Calcium (Ca): b. +2
Calcium is an alkaline earth metal and typically loses two electrons to achieve a stable octet. -
Francium (Fr): g. +1
Francium is an alkali metal and typically loses one electron to achieve a stable octet. -
Bromine (Br): h. -1
Bromine is a halogen and typically gains one electron to achieve a stable octet. -
Sulfur (S): a. -2
Sulfur typically gains two electrons to achieve a stable octet. -
Xenon (Xe): c. 0
Xenon is a noble gas and generally does not form bonds, maintaining a stable octet. -
Carbon (C): f. +4/-4
Carbon can either gain or lose four electrons to achieve a stable octet, resulting in a charge of either +4 or -4 based on the bonding situation. -
Phosphorous (P): d. +3
Phosphorus commonly forms three bonds and can adopt a +3 charge in certain bonding situations. -
Boron (B): d. +3
Boron typically forms three bonds and has a +3 charge when bonding.
So, here are the charges for each atom:
- Calcium (Ca): +2
- Francium (Fr): +1
- Bromine (Br): -1
- Sulfur (S): -2
- Xenon (Xe): 0
- Carbon (C): +4/-4
- Phosphorus (P): +3
- Boron (B): +3