Which scientist is credited with the discovery of the electron

Nuclear fusion is the source of energy for stars. besides hydrogen, which other element is most likely also common in stars?

According to the valence shell electron pair repulsion (vsepr) theory, a molecule that has four electron groups around the central atom will exhibit what electron geometry? view available hint(s) according to the valence shell electron pair repulsion (vsepr) theory, a molecule that has four electron groups around the central atom will exhibit what electron geometry? trigonal bipyramidal tetrahedral square planar determination of electron geometry requires information on whether the electron groups are lone pairs or bonding groups.

Suppose you wanted to make 100 grams of water. what is the molar mass of water (h2o)?