QQuestionChemistry
QuestionChemistry
How many valence electrons are in an atom of magnesium (atomic number 12)?
6 months agoReport content
Answer
Full Solution Locked
Sign in to view the complete step-by-step solution and unlock all study resources.
Step 1: Recall the definition of valence electrons
Valence electrons are the outermost electrons in an atom that can participate in the formation of chemical bonds with other atoms.
Step 2: Understand how to find valence electrons using the atomic number
The atomic number of an element is the number of protons in the nucleus of an atom of that element. The atomic number also equals the number of electrons in a neutral atom.
Final Answer
An atom of magnesium has 2 valence electrons.
Need Help with Homework?
Stuck on a difficult problem? We've got you covered:
- Post your question or upload an image
- Get instant step-by-step solutions
- Learn from our AI and community of students