For the unit cell of lanthanum oxide shown in Q1, which of the following options

Question

For the unit cell of lanthanum oxide shown in Q1, which of the following options correctly describes the net number of La and O ions and hence the formula for the ionic compound. Select one: Net number of La ions: 3 Net number of O ions: 2 Ionic compound formula: La_3 O_2 Net number of La ions: 2 Net number of O ions: 2 Ionic compound formula: La_2 O_2 Net number of La ions: 4 Net number of O ions: 3 Ionic compound formula: La_4 O_3 Net number of La ions: 6 Net number of O ions: 12 Ionic compound formula: La_6 O_12 Net number of La ions: 2 Net number of O ions: 3 lonic compound formula: La_2 O_3

Explanation / Answer

Net number of Lanthanum ions are 3

Net number of O ions are 2

So the formula is La2O3

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All are having 10 electrons

So their elctronic configuration is 1s2 2s2 2p6

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