CHEM 107 Exam 3 (Yu Wang)

As the frequency of an electromagnetic wave increases

its energy of one photon must increase

which of the following sets of quantum numbers is not possible?

n=3, l=0, ml=1, ms= -1/2

What is the maximum number of electrons in an atom that can have the following set of quantum numbers? n=4, l=3, ml= -2, ms= +1/2

1

Electrons in an orbital with l=3 are in a/an

f orbital

The number of orbitals in a d subshell is

5

The orbital diagram for a ground-state nitrogen atom is

1s ↑↓ 2s ↑↓ 2p ↑ ↑ ↑

The elements in Group 7A are known by what name?

halogens

The general electron configuration for atoms of all elements in Group 5A is

(ns^2)np^3

In what row and group of the periodic table would you find the element with
the electron configuration [Kr](5s^2)(4d^10)5p^2?

row 5, group 4A

How many valence electrons does an oxygen atom have?

6

what is the charge on the monoatomic ion that calcium forms in its compounds?

+2

which of the following pairs are isoelectronic?

K+ and Cl-

Which of the atoms listed below has the largest radius?

Sb

Arrange the following ions in order of increasing ionic radius: K+, P3-, S2-, Cl-

K+<Cl-<S2-<P3-

Which of the elements listed below has the highest first ionization energy?

O

Which of the following is a basic oxide?

Na2O

Which one of the following is most likely to be an ionic compound?

CaCl2

Which of the following is most likely to be a covalent compound?

NF2

Which of the atoms listed below is the most electromagnetive?

P

A polar covalent bond would form in which of the following pairs of atoms>

P-Cl

Which of these polar covalent bonds would have the greatest percent ionic character?

H-F

The number of lone electron pairs in the N2 molecule is

2

Assuming the octet rule is obeyed, how many covalent bonds will a carbon atom form to give a formal charge of zero?

4

What is the formal charge on the oxygen atom in N2O (the atomic order is N-N-O)?

-1

In the sunlight spectra, which color or light of the following has the highest frequency?

blue

what is the maximum number of electrons in an atom that can have the following set of quantum numbers? n=4, l=3, ml=-2

2

electrons in an orbital with l=2 are in a/an

d orbital

the number of orbitals in a f subshell is

7

the orbital diagram for a ground-state oxygen atom is

1s ↑↓ 2s ↑↓ 2p ↑↓ ↑ ↑

the elements in Group 2A are known by what name?

alkaline earth metals

the general electron configuration for atom of all elements in Group 7A is

n(s^2)n(p^5)

The number of lone electron pairs in the O2 molecule is

4