Teacha
  • Courses
  • Mock Exams
  • For Tutors
  • For Schools
  • Pricing
Log InStart Free
  1. Past Questions
  2. /
  3. WAEC
  4. /
  5. Physics
  6. /
  7. 2004
  8. /
  9. Q50
Question 50

Which of the following representations is correct for an atom X with 28 electrons and 30 neutrons?

  • A.\(^{30}_{28} X\)
  • B.\(^{28}_{30} X\)
  • C.\(^{58}_{30} X\)
  • D.\(^{58}_{28} X\)
Objective

Question details

Exam body
WAEC
Subject
Physics
Year
2004
Question no.
#50
Type
Objective
Previous · Q49A radioactive substance has a half-life of 3 days. If a mass of 1.55g of this… Next · Q51 In an experiment using a converging lens to produce real images on a screen, the…

More from this paper

  • Q43A charge of 1.6 x 10 -10 C is placed in a uniform electric field of intensity…
  • Q44Which of the following statements is not correct?
  • Q45The main function of the mouth piece of a telephone is that it converts sound…
  • Q46An atom is normally electrically neutral because the
  • Q47In which of the following devices is the principle of photoelectric effect not…
  • Q48Which of the following statements about X-rays is not correct? They
See all Physics 2004 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