JAMB Biology 2015 Objective — Question 45
Question 45 of 50 from the Joint Admissions and Matriculation Board (JAMB) Biology 2015 Objective paper, with the correct answer and a full explanation.
Advertisement
¹⁴₇N + X → ¹⁷₈O + ¹₁H. In the reaction above, X is a(n)
- A. lithium atom
- B. neutron
- C. helium atomCorrect
- D. deuterium atom
Explanation
Balancing mass and atomic numbers (14+4=17+1; 7+2=8+1) shows X is a helium atom (alpha particle).
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.