Teacha
  • Courses
  • Mock Exams
  • For Tutors
  • For Schools
  • Pricing
Log InStart Free
  1. Past Questions
  2. /
  3. OAU
  4. /
  5. Chemistry
  6. /
  7. 2009/2010
  8. /
  9. Q18
Question 18

A particle that contains 8 protons, 9 neutrons and 7 electrons could be written as

  • A.168O
  • B.178O-
  • C.179O-
  • D.178O+
Objective

Question details

Exam body
OAU
Subject
Chemistry
Year
2009/2010
Question no.
#18
Type
Objective
Previous · Q17Which of the following metals can be used as sacrificial cathode for preventing… Next · Q19 The decreasing order of the magnitude of energy changes is

More from this paper

  • Q14What happens to the conductivity of an electrolyte as its concentration reduces?
  • Q15If the cost of electricity required to deposit 1g of aluminum is N4.00, how much…
  • Q16The overall reaction in an electrochemical cell is . What is the symbolic…
  • Q200.92g of ethanol raised the temperature of 100g of water from 298K to 312.3K…
  • Q21The highest level of molecular disorderliness is found in
  • Q22A reaction is spontaneous at all temperature if
See all Chemistry 2009/2010 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