Electron Configurations and Orbital Notation

Front

What are valence electrons?

Back

Valence electrons are the electrons in the outermost shell of an atom that are involved in forming bonds with other atoms.

Front

How many valence electrons does Silicon (Si) have?

Back

Silicon has 4 valence electrons.

Front

What is electron configuration?

Back

Electron configuration is the distribution of electrons in an atom's orbitals, described by a series of numbers and letters.

Front

What does the notation [Xe] represent in electron configuration?

Back

The notation [Xe] represents the electron configuration of the noble gas Xenon, which is used as a shorthand to simplify the representation of electron configurations.

Front

How many total electrons are represented by the configuration 1s²2s²2p⁶?

Back

The configuration 1s²2s²2p⁶ represents a total of 10 electrons.

Front

What is the significance of the principal quantum number in electron configurations?

Back

The principal quantum number indicates the main energy level of an electron in an atom, with higher numbers corresponding to higher energy levels.

Front

What is the electron configuration for Calcium (Ca)?

Back

The electron configuration for Calcium is 1s²2s²2p⁶3s²4s².

Front

How is noble-gas notation used in electron configurations?

Back

Noble-gas notation uses the electron configuration of the nearest noble gas to simplify the representation of an atom's electron configuration.

Front

What atom corresponds to the electron configuration [Xe] 6s²4f¹⁴5d⁹?

Back

The atom corresponding to this configuration is Gold (Au).

Front

What is the maximum number of electrons that can occupy a single orbital?

Back

A single orbital can hold a maximum of 2 electrons.