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Question
Draw the atomic diagram of the following element showing the distribution of – protons, neutrons and the electrons in the various shell of the atom.
Oxygen – \[\ce{^16_8O}\]
[The upper number represent the – mass number and the lower number represent the – atomic number e.g. calcium – mass number = 40, atomic number = 20]
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Solution
Oxygen – \[\ce{^16_8O}\]
Atomic number Z = p = e = 8
Mass number A = p + n
16 = 8 + n
∴ n = 16 − 8 = 8
O
8 = 2, 6
(K, L)
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