lOMoAR cPSD| 6861666
Chem 133 Lesson Quiz 3 Questions and Answers with
Complete Solutions 100% Correct | New 2025 Update
Question 1 points
Mendeleev is given the most credit for the concept of a periodic table of the
elements because:
Question options:
His periodic table was arranged in octaves.
His representation of the table was the most
understandable.
He emphasized its usefulness in predicting the
existence and properties of unknown elements.
He had the longest history of research in elemental
properties.
He grouped elements into triads of similar
properties.
View question 1 feedback
Question 2 points
Which one of the following sets of quantum numbers is not possible?
Question options:
n = 4, l = 1, ml = 1, ms = -1/2
n = 3, l = 0, ml = 0, ms = +1/2
n = 3, l = 2, ml = -3, ms = -1/2
n = 4, l = 3, ml = -2, ms =
+1/2
, lOMoAR cPSD| 6861666
n = 2, l = 0, ml = 0, ms = +1/2
View question 2 feedback
Question 3 points
Which orbitals do not have a node at the nucleus?
Question options:
all beyond the first shell
none
all but s
s
View question 3 feedback
Question 4 points
Calculate the wavelength of a neutron that has a velocity of 250 cm/s.
mneutron = 1.675 × 10–24 g Question
options:
160 nm
1.6 pm
0.016 nm
0.16 nm
1.6 × 10–4 nm
View question 4 feedback
Question 5 points
What is the binding energy of an electron in a metal whose threshold frequency
for photoelectrons is 2.50 × 1014 Hz?
Chem 133 Lesson Quiz 3 Questions and Answers with
Complete Solutions 100% Correct | New 2025 Update
Question 1 points
Mendeleev is given the most credit for the concept of a periodic table of the
elements because:
Question options:
His periodic table was arranged in octaves.
His representation of the table was the most
understandable.
He emphasized its usefulness in predicting the
existence and properties of unknown elements.
He had the longest history of research in elemental
properties.
He grouped elements into triads of similar
properties.
View question 1 feedback
Question 2 points
Which one of the following sets of quantum numbers is not possible?
Question options:
n = 4, l = 1, ml = 1, ms = -1/2
n = 3, l = 0, ml = 0, ms = +1/2
n = 3, l = 2, ml = -3, ms = -1/2
n = 4, l = 3, ml = -2, ms =
+1/2
, lOMoAR cPSD| 6861666
n = 2, l = 0, ml = 0, ms = +1/2
View question 2 feedback
Question 3 points
Which orbitals do not have a node at the nucleus?
Question options:
all beyond the first shell
none
all but s
s
View question 3 feedback
Question 4 points
Calculate the wavelength of a neutron that has a velocity of 250 cm/s.
mneutron = 1.675 × 10–24 g Question
options:
160 nm
1.6 pm
0.016 nm
0.16 nm
1.6 × 10–4 nm
View question 4 feedback
Question 5 points
What is the binding energy of an electron in a metal whose threshold frequency
for photoelectrons is 2.50 × 1014 Hz?
