Consider a Si atom with a charge of -2 and a mass number of 28. This type of ion is called alan
How many protons in the nucleus?
How many neutrons in the nucleus?
How many electrons in the electron cloud?
If this Si lost 2 electrons, what would the charge be?

they both have a y in them

with this one i know the answer in craters one reason i looked it up and i learned about it there is my evidence

intermolecular forces are the forces between molecules or particles.

there are two kinds of van der waals forces: weak london dispersion forces and stronger dipole-dipole forces.

in molecule of water there are dipole-dipole forces between negatively charged oxygen from one molecule of water and positively charger hydrogen of another molecule of water.

hydrogen bond is an electrostatic attraction between two polar groups that occurs when a hydrogen atom (h), covalently bound to a highly electronegative atom such as flourine (f), oxygen (o) and nitrogen (n) atoms.