Teacha
  • Courses
  • Mock Exams
  • For Tutors
  • For Schools
  • Pricing
Log InStart Free
  1. Past Questions
  2. /
  3. JAMB
  4. /
  5. Chemistry
  6. /
  7. 2021
  8. /
  9. Q0
Question 0

The mass number of a nucleus is?

  • A.Always less than its atomic number
  • B.The sum of the number of protons and neutrons present in the nucleus
  • C.Always more than the atomic weight
  • D.A fraction
  • E.
Objective

Question details

Exam body
JAMB
Subject
Chemistry
Year
2021
Question no.
#0
Type
Objective
Previous · Q0The reactivity of fluorine is due to? Next · Q0 The mass of one Avogadro number of helium atoms is?

More from this paper

  • Q0Give the common name for the following compound (CH\(_{3}\))\(_{2}\) CH…
  • Q0The enzyme that converts glucose to ethyl alcohol is?
  • Q0The scientist who stated that matter can be converted into energy is?
  • Q0What is the IUPAC name for the following compound? HC\(\equiv\)CCH\(_{3}\)
  • Q0What is the chemical name for the compound CuCO\(_{3}\)?
  • Q0A 'breath test' used by traffic police to check drunken driving uses?
See all Chemistry 2021 questions
Teacha

Africa's learning & exam readiness platform. Built for students, tutors, and schools.

Platform

  • Courses
  • Mock Exams
  • Past Questions

For You

  • I'm a Tutor
  • I'm a School
  • Pricing

© 2025 Teacha. Built for African learners, tutors, and schools. Teacha is not affiliated with WAEC, NECO, or JAMB. All past questions are sourced from publicly available materials.

Privacy PolicyTerms of UseCookie Policy