Which of the following statements is/are correct? Select all that apply. All molecules have dispersion forces.
Polar molecules have dipole-dipole forces.
Nonpolar molecules have dipole-dipole forces.
Hydrogen bonding is present in molecules that contain H, N, O or F.
Hydrogen bonding is present in molecules that have an N-H, F-H or O-H bond.
Molecules that have hydrogen bonding will also have dipole-dipole forces.
Molecules that have dipole-dipole forces will also have hydrogen bonding.
The only intermolecular force present in nonpolar molecules is dispersion.
The only intermolecular force present in polar molecules is dipole-dipole forces.

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.

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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.  

you gotta add the following molecules so we can give u an answer

explanation: