A student tests a solid sample of a compound and determines that it does not conduct electric current. When the
compound is dissolved in water, the solution does conduct electric current
What type of bonding does the compound have?
a. non polar covalent
b. ionic
c. polar covalent
d. metallic

A

Explanation:

because they are non polar so would not conduct electricity :)

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.