Free account: track your progress — Sign up free

WAEC Chemistry 2025 Theory — Question 7

Question 7 of 70 from the West African Examinations Council (WAEC) Chemistry 2025 Theory paper, with the correct answer and a full explanation.

1(e)(i). Write the electron configuration for 12Mg.

Model answer

1s2 2s2 2p6 3s2

Sign up free to unlock

Score tracking
Practice history
Saved questions
Progress dashboard
Personalized sessions
Weak-topic breakdown

…and/or go further with premium services and No Ads.

Create free account

More questions from Chemistry 2025 Theory More Chemistry past papers