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).
The electronic configuration of an element X is 1s22s 22s63p 2 3p4. It can be deduced that X...
The functional group represented in the compound above is? ...
What is the atomic number of Bismuth? ...
The ∆H for the reaction represented by the energy profile above is ...