Chemistry Practice Problems Periodic Trends: Atomic Radius Practice Problems Solution: Tungsten has the highest melting point of any meta...

Solution: Tungsten has the highest melting point of any metal in the periodic table: 3422 °C. The distance between W nuclei in tungsten metal is 2.74 Å.What is the atomic radius of a tungsten atom in this environment? (This radius is called the metallic radius.)

Problem

Tungsten has the highest melting point of any metal in the periodic table: 3422 °C. The distance between W nuclei in tungsten metal is 2.74 Å.

What is the atomic radius of a tungsten atom in this environment? (This radius is called the metallic radius.)

Solution

We are asked to determine the atomic radius (metallic radius) of tungsten (W) when the distance between tungsten nuclei in the tungsten metal is 2.74 Å. 

The atomic radius of any metal, or the metallic radius, is equal to the distance between any two atoms of that metal divided by two.

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