Achemist has three compounds of similar molecular weight, but with different dominant intermolecular forces. select the compound that should have the lowest boiling point, based on the compound's dominant intermolecular force. the compound in which covalent bonds are dominant the compound in which dipole–dipole forces are dominant the compound in which hydrogen bonding is dominant the compound in which dispersion forces are dominant

the compound in which covalent bonds are dominant

the compound in which dipole–dipole forces are dominant

the compound in which hydrogen bonding is dominant

the compound in which dispersion forces are dominant

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The compound in which the dispersion forces are dominant.

Explanation:

The boiling point of a compound is dependent on the strength of the bond holding it's molecules together.

So the stronger a bond is, the more energy needed in the form of heat to break it.

The strongest of these bonds is the covalent bond.

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.