Ammonia Acid Worksheet With Answers Page 21
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49(b)
The diagram shows the electronic structure of a magnesium atom.
The atomic (proton) number of magnesium is 12.
Magnesium atom
The atomic (proton) number of oxygen is 8.
Which diagram, A, B, C or D, shows the electronic structure of an oxygen atom?
Diagram ..............................
(1)
(c)
Magnesium ions and oxide ions are formed when magnesium reacts with oxygen. The
diagram shows the electronic structure of an oxide ion.
Oxide ion
Which diagram, J, K, L or M, shows the electronic structure of a magnesium ion?
Diagram ..............................
(1)
Page 21 of 49
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