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

Assessment: JAMB UTME - Physics - 2017 Subject: Physics

Question 1 Report

Which of the following representations is correct for an atom X with 28 electrons and 30 neutrons?
Answer Details
An atom can be represented thus,

A Z X  where Z = mass number

A = atomic number

A = number of proton = number of electrons in a free state = 28

Z = number of protons + number of neutrons = 28 + 30 = 58

28 58 X is the representation

Read lesson note on Structure Of The Atom (Nigeria Only) (WAEC)
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