Chemistry Homework Help Please (2)?

11. The most probable distance of an electron from an atom's nucleus, expressed in whole numbers, refers specifically to A.the principal quantum number B.electron spin C.the Pauli exclusion principle D. the sum of an atom's sublevels 12. We can describe ___energy as the energy a body has depending... show more 11. The most probable distance of an electron from an atom's nucleus, expressed in whole numbers, refers specifically to

A.the principal quantum number
B.electron spin
C.the Pauli exclusion principle
D. the sum of an atom's sublevels

12. We can describe ___energy as the energy a body has depending on its position with relationship to another body

A.heat
B.kinetic
C.potential
D.system

13."Its bonds are strong, and its more or less nonmobile nuclei are surrounded by a sea of mobile electrons" This sentence is expresses ___bonds

A.metallic
B.cordinate covalent
C.ionic
D.multiple covalent

14.According to Hund's rule, electrons fill sublevels one electron at a time, and all ___electrons around a given atom will have?

A.paired, the same spin
B.unpaired, the same spin
C.paired, a single negative charge
D. unpaired, equal valence energy

15.Looking at the Periodic Table, we find that in every vertical group, electronegativity _____as we move down and as atomic number increases. At the same time, moving horizontally across a row of the table, we find that electronegativity _____as we move from left to right?

A.decreases, increases
B.decreases, decreases
C.increases, decreases
D.increases, increases

16.If two atoms form a molecule, the approximated distance between the nuclei of the two atoms is called the?

A.covalent atomic radius
B.bond length
C.bond length less the covalent atomic radius
D.effective bond radius

17. Expressed as joules per gram degree,____heat capacity is a quantity necessary to raise the temperature of one gram of any substance by one degree celsuis.

A.Kelvin
B.mass
C.differential
D.specific

18.As determined by the work of physicist Niels Bohr, an atom emits energy when one of its electrons falls from a higher to a lower energy level. Following from this observation, the Bhor model also proposes that the difference between the two energy levels in such a case determines the?

A. color of the electron
B. frequency of the emitted radiation
C. instability of the atom's nucleus
D. mass of the emitted radiation
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