Question

What is Group 7 on the periodic table called?

Answer 1

The important properties of Group 7 are given below:

1. The elements of Group 7 are transition metals that include Manganese ($\mathrm{Mn}$), Technetium ($\mathrm{Tc}$), Rhenium ($\mathrm{Re}$), and Bohrium ($\mathrm{Bh}$).
2. Manganese is the only element found in significant amounts on Earth, but your body requires only trace amounts and is commonly used in iron alloys.
3. Technetium, the lightest element with no stable isotopes, is frequently used as a radioactive tracer.
4. Rhenium is very rare, but it can still be used as a catalyst or to make materials that are incredibly strong and chemically resistant.
5. Bohrium is a man-made material that is highly unstable and can be used for no practical purpose.
6. The valence electronic configuration of Group 7 is $\left(\mathrm{n}-1\right){\mathrm{d}}^{5-6}{\mathrm{ns}}^{1-2}$ with periods from 4 to 7 which belongs to transition elements.
7. The atomic number with atomic radii of Manganese, Technetium, Rhenium, and Bohrium are 25 (53pm), 43 (205pm), 75 (205pm), and 107 (200pm).