Metals and Non-metals
What are t...
2 years ago
Graduate medical student with 2 previous degrees
Group 7 halogens are a column of non-metals with similar chemical properties.
The halogens are fluorine (F), chlorine (Cl), bromine (Br), iodine (I), astatine (At), and tennessine (Ts).
A common feature that they all have is that they have 7 electrons in their outer shells.
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