Predict the formula of a compound formed by aluminium and sulphur.

Predict the formula of stable compound formed by an element with atomic number 114 and fluorine.

Predict the formula of stable compound formed by an element with atomic number 114 and fluorine.

(a) If the valency of carbon is 4 and that of sulphur is 2, write the formula of the compound formed berween carbon and sulphur atoms. Also name the compound. (b) What is wrong with the statement '1' mole of hydrogen?

Using the periodic table, predict the formula of compound formed between an element X of group 13 and another element Y of group 16.

What is the formula of the binary compound of boron and sulphur?

Use Mendeleev.s periodic Law to predict the formula of Oxides of potassium, aluminium and barium.

If the valency of carbon is 4 and that of sulphur is 2, work out the formula of the compound formed by the combination of carbon with sulphur. What is the name of this compound ?

Identify the positions of Al(z = 13) and S(z = 16) the periodic table with the help of their electronic configuration. Predict the formula of the compound formed betweent them.