How do halogens and alkali metals compare and contrast?

They are pretty much opposites. Halogens are the compounds found in group 17 of the periodic table. They are all incredibly electronegative, meaning that they are very willing to take electrons from other atoms. Fluorine, for example, is the only element that can take electrons away from oxygen. read more

They are pretty much opposites. Halogens are the compounds found in group 17 of the periodic table. They are all incredibly electronegative, meaning that they are very willing to take electrons from other atoms. read more

Since the alkali metals and halogens comes under 1st group and 17th group, they have one electron and seven electrons in the outermost shell. Alkali metals lose an electron to gain valency +1 and halogens gain an electron to attain -1 valence. read more