STRAIGHTERLINE CHEMISTRY EXAMINERS STUDY
GUIDE QUESTIONS AND ANSWERS SURE A+
✔✔A(n) _________ is a point at which a standing wave has zero amplitude.
Select one:
a. crevice
b. node
c. pit
d. burrow
e. orbital - ✔✔b. node
✔✔The Pauli exclusion principle states that no ____ electrons within an atom can have
the same ____ quantum numbers.
Select one:
a. 4; 6
b. 2; 4
c. 3; 6
d. 6; 10
e. 3; 8 - ✔✔b. 2; 4
✔✔Emission spectra
Select one:
, a. cannot be used to identify an unknown atom.
b. can be used to identify unknown atoms.
c. can be explained by the movement of protons colliding with electrons.
d. none of the. - ✔✔b. can be used to identify unknown atoms.
✔✔Consider the element with the electron configuration [Kr]5s24d105p5. This element
is
Select one:
a. a halogen.
b. a transition metal.
c. an alkali metal.
d. an actinide element.
e. a noble gas. - ✔✔a. a halogen.
✔✔Consider the element with the electron configuration [Kr]5s24d7. This element is
Select one:
a. a halogen.
b. a transition metal.
c. a nonmetal.
d. an actinide element.
e. a noble gas. - ✔✔b. a transition metal.
✔✔How does atomic radius change as you move across the periodic table?
Select one:
a. Atomic radius decreases moving from left to right across a period and increases from
top to bottom.
b. Atomic radius increases moving left to right across a period and decreases from top
to bottom.
c. Smaller nuclear charge lowers energy; more electrons in an orbital lowers energy.
d. Atomic radius increases diagonally across the periodic table.
e. None of the answers is correct. - ✔✔a. Atomic radius decreases moving from left to
right across a period and increases from top to bottom.
✔✔Which of these choices is the electron configuration of the iron(III) ion?
Select one:
a. [Ar]3d5
b. [Ar]4s13d5
c. [Ar]4s23d3
d. [Ar]3d6
e. [Ar]4s23d9 - ✔✔a. [Ar]3d5
✔✔An element with the general electron configuration for its outermost electrons of
ns2np1 would be in which element group?
Select one:
a. 2A
GUIDE QUESTIONS AND ANSWERS SURE A+
✔✔A(n) _________ is a point at which a standing wave has zero amplitude.
Select one:
a. crevice
b. node
c. pit
d. burrow
e. orbital - ✔✔b. node
✔✔The Pauli exclusion principle states that no ____ electrons within an atom can have
the same ____ quantum numbers.
Select one:
a. 4; 6
b. 2; 4
c. 3; 6
d. 6; 10
e. 3; 8 - ✔✔b. 2; 4
✔✔Emission spectra
Select one:
, a. cannot be used to identify an unknown atom.
b. can be used to identify unknown atoms.
c. can be explained by the movement of protons colliding with electrons.
d. none of the. - ✔✔b. can be used to identify unknown atoms.
✔✔Consider the element with the electron configuration [Kr]5s24d105p5. This element
is
Select one:
a. a halogen.
b. a transition metal.
c. an alkali metal.
d. an actinide element.
e. a noble gas. - ✔✔a. a halogen.
✔✔Consider the element with the electron configuration [Kr]5s24d7. This element is
Select one:
a. a halogen.
b. a transition metal.
c. a nonmetal.
d. an actinide element.
e. a noble gas. - ✔✔b. a transition metal.
✔✔How does atomic radius change as you move across the periodic table?
Select one:
a. Atomic radius decreases moving from left to right across a period and increases from
top to bottom.
b. Atomic radius increases moving left to right across a period and decreases from top
to bottom.
c. Smaller nuclear charge lowers energy; more electrons in an orbital lowers energy.
d. Atomic radius increases diagonally across the periodic table.
e. None of the answers is correct. - ✔✔a. Atomic radius decreases moving from left to
right across a period and increases from top to bottom.
✔✔Which of these choices is the electron configuration of the iron(III) ion?
Select one:
a. [Ar]3d5
b. [Ar]4s13d5
c. [Ar]4s23d3
d. [Ar]3d6
e. [Ar]4s23d9 - ✔✔a. [Ar]3d5
✔✔An element with the general electron configuration for its outermost electrons of
ns2np1 would be in which element group?
Select one:
a. 2A
