Waec Model Questions Vol1 2017 Chemistry Question 21
Practice objective / multiple choice question 21 from the 2017 Waec Model Questions Vol1 Chemistry examination.
The diagram shows a Bohr model of a neutral atom. The nucleus contains 11 protons and 12 neutrons. The electron shells are labelled K, L and M with 2, 8 and 1 electrons respectively. Based on this information, state the atomic number (Z) and the mass number (A) of the element.
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About This Question
This is Waec Model Questions Vol1 2017 Chemistry Question 21. It is a objective / multiple choice question from the 2017 Waec Model Questions Vol1 Chemistry examination.
Difficulty level: Easy .
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