An element with atomic number 11 has how many electrons in its outermost shell?
A1CORRECT
B2
C3
D8
JAMB UTMEChemistry
AI
Toaster Teacher
Why the answer is A, and why the others tempt you.
Z = 11 → electron config 2,8,1. Outermost shell has 1 electron (this is sodium).
Want this in Pidgin, Yoruba, Igbo or Hausa? Sign up free →
Practice more Chemistry questions
JAMB UTME Chemistry has thousands more questions like this — with Worked answers on every one.