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Chemistry (Halogens (Bromine (Br (2,8,8,17)), Iodine (I), Chlorine (Cl (2…
Chemistry
Halogens
Bromine
Br
2,8,8,17
Iodine
I
Chlorine
Cl
2,8,7
Flourine
Fl
2,7
Halogens are usually present in the form of diatomic molecules.
Alkali Metals
Potassium
Rubidium
Sodium
Lithium
Electron configuration