Understanding Electron Orbitals and Configurations

What is the primary concept behind the idea of an orbital?

• Orbitals describe the probability of finding an electron in a certain area.

• Electrons orbit the nucleus like planets orbit the sun.

• Orbitals are the paths electrons take around the nucleus.

• Electrons are found in fixed positions around the nucleus.

How many electrons can the p subshell accommodate?

• 2 electrons

• 8 electrons

• 4 electrons

• 6 electrons

What is the electron configuration of a neutral hydrogen atom?

• 2p1

• 2s1

• 1s2

• 1s1

How many electrons can the first shell of an atom hold?

• 2 electrons

• 1 electron

• 4 electrons

• 3 electrons

Where does the third electron of a neutral lithium atom go?

• First shell, p subshell

• Second shell, p subshell

• Second shell, s subshell

• First shell, s subshell

What is the electron configuration for a neutral beryllium atom?

• 1s2 2p2

• 1s2 2p1

• 1s2 2s2

• 1s2 2s1

How many electrons does a neutral boron atom have in its p subshell?

• 3 electrons

• 2 electrons

• 4 electrons

• 1 electron

What is the electron configuration of a neutral carbon atom?

• 1s2 2s2 2p1

• 1s2 2s2 2p2

• 1s2 2p2 2s2

• 1s2 2p3

What is the purpose of using noble gas configuration?

• To describe the chemical properties of an element.

• To indicate the number of protons in an atom.

• To show the exact position of each electron.

• To simplify the representation of electron configurations.

Which noble gas is used as a reference for the electron configuration of carbon?

• Neon

• Argon

• Krypton

• Helium