Question 1

According to the Aufbau principle, the 6p orbital is filled _____ the 5d orbital.

Accepted Answer

The answer of According to the Aufbau principle, the 6p...

Question 2

The elements that contain _____ orbitals in their valence shell are the lanthanides.
A) 5d
B) 5f
C) 4f
D) 4d
E) 6d

Accepted Answer

The lanthanides contain 4f orbitals in their valence shell, which is a defining characteristic of these elements.

Question 3

Assuming aufbau principle, what is the number of electrons in an atom in which the 3d subshell is half filled?
A) 5
B) 11
C) 18
D) 23
E) 25

Accepted Answer

The answer of Assuming aufbau principle, what is the number...

Question 4

How many unpaired electrons does fluorine contain?
A) 0
B) 1
C) 2
D) 3
E) 4

Accepted Answer

Fluorine has 1 unpaired electron in its outermost shell.

Question 5

Lanthanum is a(n) _____ block element.

Accepted Answer

The answer of Lanthanum is a(n) _____ block element....

Question 6

The _____ is the process used to build up the periodic table by adding protons one by one to the nucleus and adding the corresponding electrons to the lowest-energy orbital available without violating the Pauli exclusion principle.

Accepted Answer

The answer of The _____ is the process used to...

Question 7

Write a note on the blocks and the corresponding electronic configuration in the periodic table?

Accepted Answer

The answer of Write a note on the blocks and...

Question 8

The electronic configuration of chlorine is [ _____ ]3s²3p⁵.

Accepted Answer

The answer of The electronic configuration of chlorine is [...

Question 9

Assuming aufbau principle, what is the number of electrons in an atom in which the 4p electron is fully filled?
A) 8
B) 10
C) 18
D) 28
E) 36

Accepted Answer

The aufbau principle states that electrons fill atomic orbitals of the lowest available energy levels before occupying higher levels. For the 4p subshell to be fully filled, it must contain its maximum of 6 electrons. Before reaching the 4p subshell, electrons would fill the 1s, 2s, 2p, 3s, 3p, 4s, and 3d subshells. Adding up the electrons in these subshells (2 in 1s, 2 in 2s, 6 in 2p, 2 in 3s, 6 in 3p, 2 in 4s, and 10 in 3d) plus the 6 in the 4p subshell gives a total of 36 electrons.

Question 10

Which of the following subshells would be filled first?
A) 4f
B) 5p
C) 6d
D) 7p
E) 6p

Accepted Answer

According to the Aufbau principle, which dictates the order in which subshells are filled, the 5p subshell has a lower energy level than the other options and would therefore be filled first.

Quiz 6: The Structure of Atoms

According to the Aufbau principle, the 6p orbital is filled _____ the 5d orbital.

The elements that contain _____ orbitals in their valence shell are the lanthanides.

Assuming aufbau principle, what is the number of electrons in an atom in which the 3d subshell is half filled?

How many unpaired electrons does fluorine contain?

Lanthanum is a(n) _____ block element.

The _____ is the process used to build up the periodic table by adding protons one by one to the nucleus and adding the corresponding electrons to the lowest-energy orbital available without violating the Pauli exclusion principle.

Write a note on the blocks and the corresponding electronic configuration in the periodic table?

The electronic configuration of chlorine is [ _____ ]3s23p5.

Assuming aufbau principle, what is the number of electrons in an atom in which the 4p electron is fully filled?

Which of the following subshells would be filled first?

The electronic configuration of chlorine is [ _____ ]3s²3p⁵.