Two elements, X and Y are in the same group on the period...
Two elements, X and Y are in the same group on the periodic table because they both have the same
number of electronic shells
number of valence electrons
atomic size
atomic number
Correct answer is B
The members of the same group always have the same number of electrons in the outer shell (i.e number of valence electrons).
A certain hydrocarbon on complete combustion at s.t.p produced 89.6dm3 of CO2 and 54g of w...
2-methylbut-2-ene has the structure ...
What is the chemical symbol for Terbium? ...
What is the IUPAC name for the compound CCl4?...
Potassium tetraoxomanganate (VII) is often added to impure water to? ...
The tincture of iodine means iodine dissolved in ...
Which of the following statements is not a postulate of the kinetic theory of gases? ...
The production of biogas from the fermentation of waste materials is an example of ...
Which of the following conduct electricity? ...
In the Haber process for the manufacture of ammonia, finely divided iron is used as...