1. what is the formula of calcium bromide?\noptions: \n○ cabr\n○ cabr₂\n○ ca₂br\n○ ca₂br₂\nclear all
1. what is the formula of calcium bromide?\noptions: \n○ cabr\n○ cabr₂\n○ ca₂br\n○ ca₂br₂\nclear all
Answer
Explanation:
Step1: Determine ion charges
Calcium (Ca) is in group 2, so it forms ( Ca^{2+} ) ions. Bromine (Br) is in group 17, forming ( Br^- ) ions.
Step2: Balance charges
To balance ( 2+ ) (from Ca) and ( 1- ) (from Br), we need 2 Br⁻ for 1 Ca²⁺. So the formula is ( CaBr_2 ).
Answer:
( \boldsymbol{CaBr_2} ) (corresponding to the option with ( CaBr_2 ))