What is the ralio of sr + ions to brions in a neutral compound?
o 1: 1
o 1: 2
o 2: 1
o 3: 2

1:2

Explanation:

In neutral compound the negative and positive charges are always equal. Thus cancel the effect of each other and make the compound over all neutral.

The compound made by strontium and bromine is given below.

SrBr₂

It is known that  halogens atom gain one electron to complete the outer most valance shell and usually show -1 oxidation state.

(x) + 2(-1) = 0

x + (-2) = 0

x -2 = 0

x = +2

The oxidation sate of strontium is +2 and bromine is -2 thus make the compound overall neutral.

Sr⁺²  Br⁻¹

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