Question

question 17 1 pts if a combination reaction takes place between rubidium and bromine, the chemical formula for the product is ____. rbbr2 rb2br rubr rbbr

Explanation:

Step1: Determine ion - charges

Rubidium (Rb) is in Group 1 of the periodic table, so it forms a + 1 ion ($Rb^+$). Bromine (Br) is in Group 17, so it forms a - 1 ion ($Br^-$).

Step2: Write the chemical formula

In a neutral compound, the sum of the charges of the ions must be zero. Since the charge of $Rb^+$ is + 1 and the charge of $Br^-$ is - 1, the chemical formula is RbBr.

Answer:

RbBr