Physics, 30.01.2020 13:48 weeblordd

the periodic table was developed in order to group and organize elements with similar physical and chemical properties.

elements such as fluorine, chlorine, and iodine all are very reactive and only need one more electron to fill their outer shells. which of these best describes this family of elements?
a) halogens
b) noble gases
c) alkali metals
d) alkaline earth metals

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