Which of the following statement is correct about th...
Which of the following statement is correct about the periodic table?
Elements in the same period have the same number of valency electron
The valence electron of the elements in the same period increase progressively across the period
Elements in the same group have the same number of electron shells
The non-metallic properties of the elements tend to decrease across each period
Correct answer is B
The valence electron of the elements in the same period increase progressively across the period due to an increase in atomic number
Which of the following properties is not characteristic of electrovalent compounds? ...
The reaction Mg + H2O → MgO + H2 takes place only in the presence of?...
From the diagram above, an ideal gas can be represented by ...
How many lone pair (s) of electrons is present in HF? ...
A mixture of 0.20 mole of Ar, 0.20 mole of N2 and 0.30 mole of He exerts a total pressure of 2....