Why do valence electrons form bonds to create molecules and compounds? a. they are weaker than the electrons found closer to the nucleus. b. they are smaller than other electrons c. they are smaller than other electrons d. they are stronger than the electrons found closer to the nucleus note: yes, i am aware of b and d being the same, i have no clue for why that is.

Which substances have the lowest melting points: ionic covalent, or metallic

How many moles of al3+ ions are in 1.25 moles of al2o3

The two naturally occurring isotopes of chlorine are 35cl (34.969 amu, 75.77%) and 37cl (36.966 amu, 24.23%). the two naturally occurring isotopes of bromine are 79br (78.918 rm amu, 50.69%) and 81br (80.916 amu, 49.31%). chlorine and bromine combine to form bromine monochloride, brcl. 1. how many peaks will be present in a mass spectrum for brcl? the four combinations of molecule possible given these four isotopes are: 81br37cl, 81br35cl, 79br37cl, and 79br35cl. 2. what are the masses of the four different brcl molecules? express the masses using six significant figures, in decreasing numeric order (highest to lowest), separated by commas.