The Aufbau principle states that:Select the correct answer below:1. You must place one electron in each orbital in a subshell before doubling up.2. Orbitals will be filled in order of increasing energy, which is generally in order of increasing principal quantum number.3. No two electrons in an atom can have the same set of quantum numbers.4. None of the above

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

Geothermal energy for industrial use is available almost anywhere. a. true b. false

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.