What happens when you mix potassium and tellurium?

Answer 1

It is impossible to mix potassium and tellurium in a chemical reaction because to form a stable compound, you get 8 valence electrons. Potassium is in group I, so it has 1 electron. Tellurium is in group XVI, so it has six electrons. 1+6=7, so it is impossible UNLESS you have two potassium atoms to form K2Te.

Answer 2

You get a mixture of helium and potassium. If the mixture is not confined in a sealed container,
then the helium escapes, and you're left with a pile of potassium.

Helium is quite inert, and doesn't combine with anything else to form chemical compounds.
So all you ever get by mixing helium with other things is mixtures.

Answer 3

After the mixing of solid metals - nothing.