sunnynnus sunnynnus

05-01-2016
Chemistry

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what element s a halgen gas with a mass les than 19

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JJMunro JJMunro

05-01-2016

The halogens are Group 7. Group 7 consists of Flourine, Chlorine, Bromine, Iodine and Astatine.

Element Mass

Flourine 18.99
Chlorine. 35.5
Bromine. 79.9
Iodine. 126.9
Astatine 210

The answer is Flourine because it has a mass of less than 19 :) Hope this helps.

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