Question

Use Mendeleev’s periodic table to predict the formulae for the oxides of the following elements: K, C, Al, Si, Ba.

Answer 1

K is in group 1. Therefore, the oxide will

be

$k _{2}o$

C is in group 4. Therefore, the oxide will be

$c _{}(2) o$

Al is in group 3. Therefore, the oxide will

be

$ai _{2}o _{3}$

Si is in group 4. Therefore, the oxide will

be

$sio _{2}$

Ba is in group 2. Therefore, the oxide will be Bao.

Answer 2

Answer
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