The group to which elements belong in the periodic table ...
The group to which elements belong in the periodic table is determined by the number?
electrons
core electrons
valence shells
valence electrons
Correct answer is D
This periodic table shows the valences of element groups.
The ammonium compound used in the manufacture of dry cells is ...
How many moles of (H+) are there in 1 dm3 of 0.5 M solution of H2SO4?...
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Which of the following oxides of nitrogen has oxidation number of + 1? ...
When air in a syringe is compressed such that there is no change in temperature, the ...
Which of the following halogens is the most reactive?...
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Methylethanoate reacts with ammonia to yield? ...
A mixture of common salt, ammonium chloride and barium sulphate can best be separated by ...