Chlorine and Magnesium are in the same horizontal row or period, so Magnesium.
I am guessing Choline was a typo, if you meant chlorine, then all of the halogens have similar chemical properties
Fluorine or Bromine have similar properties to chlorine because both are halogens.
Magnesium
Magnesium
Not usually, but the closely similar element chlorine often is.
Chlorine
It's Chlorine because they are in the same group in the periodic table.
potassium
I am guessing Choline was a typo, if you meant chlorine, then all of the halogens have similar chemical properties
Fluorine or Bromine have similar properties to chlorine because both are halogens.
Chlorine, Bromine, and Iodine. They are all in the same periodic group.
Magnesium
Magnesium
Not usually, but the closely similar element chlorine often is.
Elements in the periodic table that are similar to sulfur would be oxygen, and selenium
Chlorine and Magnesium are placed in same period. They are placed in period-3.
fluorine