Solid potassium and fluorine gas are produced by the decomposition of solid potassium fluoride. write a balanced chemical equation for this reaction.

Explanation:

An equation will be balanced when there are equal number of atoms on both reactant and product side.

And a reaction in which a compound dissociates to give two products is known as a decomposition reaction.

For example,

This reaction equation represents decomposition of solid potassium fluoride into solid potassium and fluorine gas. Also, there are equal number of atoms on both reactant and product side so, the equation is balanced.

explanation:

let the different atoms be x and y. each with four protons and same mass will be represented as follows.

mass number is number of protons + number of neutrons.

            and  

since, it is given that one has a negative charge while the other is neutral. therefore, there will be increase in number of protons and the atom will be represented as follows.

according to periodic table, mass number of beryllium is 9 and it has atomic number 4 so, the atoms will be and .  

the protons and neutrons will be located inside the nucleus whereas the electrons will be revolving around the nucleus.  

1 is the answer to this problem