Question

While looking at bromine (Br) on the periodic table, a student needs to find another element with very similar chemical properties but with a different atomic mass. Which best describes the student’s options?

Answer 1

old question but will respond so this can be closed

answer choices (please post these next time)

- There are two possible elements, and they are directly to the left and right of bromine.
- There are two possible elements, and they are directly above and below bromine.
- There are many possible elements, and they are all in the same vertical column as bromine.
- There are many possible elements, and they are all in the same horizontal row as bromine.

Answer 2

a major factor that influences properties is the # of valence electrons. elements w/ the same valence electron count will tend to have similar properties. so think about whether elements in the same 1. column, or 2. row, will have the same properties or not.

if you're not sure: https://slideplayer.com/slide/12778464/77/images/5/Groups+Periods+Elements+in+the+same+Group+have+similar+properties.jpg