Post-UTME Chemistry 2010 Objective — Question 1
Question 1 of 11 from the Post-UTME Screening (Post-UTME) Chemistry 2010 Objective paper, with the correct answer and a full explanation.
Advertisement
What is the atomic number of an element if its atom contains 10 protons, 10 electrons and 12 neutrons?
- A. 32
- B. 22
- C. 20
- D. 10Correct
Explanation
Atomic number equals the number of protons, which is 10.
Advertisement
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.