Jamb Physics 2017 Past Questions and Answers

Question 51:

• JAMB 2017

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

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

Question 52:

• JAMB 2017

Which of the following is true of an electrical charge?

A. Positive charge means deficit electrons
B. Negative charge means excess of electrons
C. Electric current means movement of electrons
D. All of the above