Font size
WorksheetsElectron Configurations and Orbital Notation
Total questions: 45
Worksheet time: 2hrs 48mins
Samuel, David, and Ava are studying chemistry together. They come across a term 'electron configuration notation'. David thinks it's a method of measuring the charge of an electron. Ava believes it's a technique for determining the mass of an electron. Samuel thinks it's a system for organizing electrons in a periodic table. However, their teacher explains it as a way of representing the arrangement of electrons in an atom or ion using a series of numbers, letters, and superscripts. Who among them is correct?
David, who thinks it's a method of measuring the charge of an electron.
Ava, who believes it's a technique for determining the mass of an electron.
Samuel, who thinks it's a system for organizing electrons in a periodic table.
Their teacher, who explains it as a way of representing the arrangement of electrons in an atom or ion using a series of numbers, letters, and superscripts.
Ethan is studying chemistry and comes across the term 'orbital notation'. He asks Benjamin and Nora about it. How would you explain it to him?
A way of representing the electron configuration of an atom using arrows and numbers.
A system for organizing data in a computer's memory.
A technique for mapping the Earth's magnetic field.
A method of visualizing the movement of planets in the solar system.
Noah is learning about the Aufbau principle in his chemistry class. Can you help him understand the principle?
Electrons fill atomic orbitals of the lowest available energy levels before occupying higher levels.
Electrons fill atomic orbitals of the highest available energy levels before occupying lower levels.
Electrons fill atomic orbitals randomly without any specific order.
Electrons fill atomic orbitals of the same energy level simultaneously.
Charlotte, Noah, and Zoe are studying chemistry together and discussing electron configurations. They come across Hund's rule. What does Hund's rule state?
Hund's rule states that electrons occupy orbitals of the same energy level one at a time before pairing up.
Hund's rule states that electrons occupy orbitals of different energy levels one at a time before pairing up.
Hund's rule states that electrons occupy orbitals of the same energy level all at once.
Hund's rule states that electrons do not occupy orbitals and instead exist in a free state.
Aiden, Aria, and Luna are discussing the Pauli exclusion principle in their physics class. Explain the principle they are discussing.
The Pauli exclusion principle is a concept in classical mechanics, not quantum mechanics.
The Pauli exclusion principle states that identical fermions can occupy the same quantum state simultaneously.
No two identical fermions can occupy the same quantum state simultaneously.
The Pauli exclusion principle only applies to bosons, not fermions.
Avery, Rohan, and Olivia are studying the atomic structure. They are discussing the third energy level of an atom. How many sublevels are in the third energy level?
4
3
2
1
During a chemistry class, Daniel, Maya, and Benjamin were discussing the electron configuration of nitrogen (N). Can you help them determine the correct configuration?
1s2 2s2 2p5
1s2 2s2 2p4
1s2 2s2 2p3
1s2 2s2 2p2
Ava, Abigail, and Charlotte are studying chemistry together. They are trying to draw the orbital notation for oxygen (O). Which of the following notations is correct?
1s^2 2s^2 2p^2
1s^2 2s^2 2p^4
1s^2 2s^2 2p^6
1s^2 2s^2 2p^3
Ava, Priya, and Aiden are studying chemistry together. They are discussing the Aufbau principle and Ava asks, 'According to the Aufbau principle, which sublevel is filled after 4s?'
4p
5s
2p
3d
Aria, Anika, and Benjamin are studying atomic structure in their chemistry class. Their teacher asks, 'If each of you were an electron, how many of you could occupy a single orbital?'
3
2
1
4
Choose the correct electron configuration for Beryllium (Be).
1s1
1s2 2s2
1s2 2s2 2p1
Choose the correct electron configuration for Chlorine (Cl).
1s2 2s2 2p1
1s2 2s2 2p6 3s2
1s2 2s2 2p6 3s2 3p5
Choose the correct electron configuration for Nickel (Ni).
1s2 2s2 2p6 3s2 3p6 4s2 3d8
1s2 2s2 2p6 3s2 3p6 4s2 3d2
1s2 2s2 2p6 3s2 3p6 4s10
Choose the correct electron configuration for Krypton (Kr).
1s2 2s2 2p6 3s2 3p6 4s8 3d8
1s2 2s2 2p6 3s2 3p6 4s2 3d8 4p3
1s2 2s2 2p6 3s2 3p6 4s2 3d8 4p6
What element has the following electron configuration: 1s2 2s2 2p6 3s2?
Ca+2
Ca
Mg
Na
Ar
Match the elements with their electron configuration! (3 minutes)
1s2 2s2 2p3
Nitrogen, N
1s2 2s2 2p6 3s2 3p3
Phosphorus, P
1s2
Helium, He
1s2 2s2 2p6 3s2 3p6
Argon, Ar
1s2 2s2 2p6 3s2 3p6 4s2 3d5
Manganese, Mn
Choose the correct electron configuration for Beryllium (Be).
1s1
1s2 2s2
1s2 2s2 2p1
Choose the correct electron configuration for Chlorine (Cl).
1s2 2s2 2p1
1s2 2s2 2p6 3s2
1s2 2s2 2p6 3s2 3p5
Choose the correct electron configuration for Nickel (Ni).
1s2 2s2 2p6 3s2 3p6 4s2 3d8
1s2 2s2 2p6 3s2 3p6 4s2 3d2
1s2 2s2 2p6 3s2 3p6 4s10
Choose the correct electron configuration for Krypton (Kr).
1s2 2s2 2p6 3s2 3p6 4s8 3d8
1s2 2s2 2p6 3s2 3p6 4s2 3d8 4p3
1s2 2s2 2p6 3s2 3p6 4s2 3d8 4p6
What element has the following electron configuration: 1s2 2s2 2p6 3s2?
Ca+2
Ca
Mg
Na
Ar
Match the elements with their electron configuration! (3 minutes)
1s2 2s2 2p3
Nitrogen, N
1s2 2s2 2p6 3s2 3p3
Phosphorus, P
1s2
Helium, He
1s2 2s2 2p6 3s2 3p6
Argon, Ar
1s2 2s2 2p6 3s2 3p6 4s2 3d5
Manganese, Mn
1s22s22p63s23p64s23d10
How many electrons are in the following electron configuration? 1s22s22p3
7
5
12
it is impossible to determine
What is the noble gas shorthand electron for Phosphorus atom?
[Ar] 3p4
[He] 3s23p4
[Ne] 3s23p3
[Na] 3s23p4
