1. how would increaseing the number of electrons in an atom affect the mass of that atom? 2. why are atoms neutral in charge ?
3. a neutral atom of neon would have how many electrons?
4. where are electrons located in the atom?
please help thanks im failing and it needs to be turned it

Use the periodic table to determine the electron configuration of dysprosium (dy) and americium (am) in noble-gas notation.

Which type of intermolecular force is pbr3

Magnesium is the limiting reactant in this experiment. calculate the theoretical yield of mgo for each trial. trial 1: trial 2: data mass of empty crucible with lid trial 1: 26.688 trial 2: 26.681 mass of mg metal, crucible, and lid trial 1: 26.994 trial: 2 26.985 mass of mgo, crucible, and lid trial 1: 27.188 trial 2: 27.180