Multiple choice general knowledge science & technology

According to atomic theory, electrons are usually found:

  1. in the atomic nucleus

  2. outside the nucleus, yet very near it because they are attracted to the protons

  3. outside the nucleus and often far from it - most of an atom's volume is its electron cloud

  4. either in the nucleus or around it - electrons are readily found anywhere in an atom
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

According to modern atomic theory, electrons exist in regions of space called orbitals, forming an electron cloud around the nucleus. The electron cloud occupies most of an atom's volume (over 99%), while the nucleus is tiny and dense. Electrons are not found in the nucleus.

Keep practicing — related questions