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Chemistry 14 Online
kekeman:

Using the periodic table, determine which of the following elements has the MOST similar properties as Chlorine (Cl). Magnesium (Mg), because they are both in the third period. Helium (He), because they are both non-metals. Calcium (Ca), because they both have three energy levels. Bromine (Br), because they are both halogen nonmetals.

kekeman:

I think the answer is Bromine

Vocaloid:

good, they're in the same group (halogens), so Br and Cl should have similar properties.

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