Skip to content
  • Chemistry MCQs
  • Computer MCQs
  • English MCQs
  • General Knowledge MCQs
  • General Science MCQs
  • Islamiyat MCQs
  • Mathematics MCQs
  • Physics MCQs
TestMCQs.org
  • Home
  • Subjects
  • Dynamic Quiz
  • Jobs
  • Blog
  • About Us
  • Contact Us

Home > Chemistry > Atomic Structure

What is the principal quantum number (n) for the outermost electrons in sodium (Na)?

A. 1
B. 2
C. 3
D. 4

Answer: 3


Additional Information: Sodium has its outermost electrons in the third shell (n=3).


Subjects: Atomic Structure, Chemistry

Related MCQs

  • Which quantum number is associated with the spin of an electron?
  • What is the correct electron configuration of Neon (atomic number 10)?
  • What do you call the elements in group 17 of the periodic table?
  • What element has the atomic number 6?
  • What is the concept of quantization in atomic structure?
  • Which of the following elements has the highest electronegativity?
  • What is the principal quantum number for the first energy level?
  • What is the primary type of bond formed between two nonmetals?
  • What is the main reason for the formation of ionic bonds?
  • What is the measure of the amount of matter in an object?
  • What is the unit of atomic mass?
  • What is the main type of force present in ionic compounds?
  • What is the term for the minimum energy required to remove an electron from an atom?
  • How many total electrons can the third energy level hold?
  • What is the mass of a neutron compared to a proton?

MCQs Menu

  • Biology MCQs
  • Chemistry MCQs
  • Computer MCQs
  • English MCQs
  • General Knowledge MCQs
  • General Science MCQs
  • Geography MCQs
  • Islamiyat MCQs
  • Mathematics MCQs
  • Physics MCQs

Engineering MCQs

  • Civil MCQs
  • Electrical MCQs
  • Mechanical MCQs
  • Privacy Policy
  • Terms & Conditions
  • Disclaimer
  • Sitemap
© 2025 TestMCQs.org • Built with GeneratePress