Question

1. what is an electron configuration?

options:

• a description of where valence electrons are in an atom
• a model to predict the mass of the molecule
• a representation of the protons in an atom
• a list of where all the electrons are located in an atom

Explanation:

• Option 1: Electron configuration includes all electrons, not just valence electrons.
• Option 2: Electron configuration has nothing to do with predicting molecular mass.
• Option 3: Electron configuration is about electrons, not protons.
• Option 4: Electron configuration is a list that shows the distribution (location) of all electrons in an atom across different energy levels, orbitals, etc.

Answer:

The correct option is: a list of where all the electrons are located in an atom (the fourth option).