Respuesta :
Well since chlorine upon receiving a valence electron from the X element, we would know that the element would be a metal, based on the charge of Cl, after it receives a valence electron is -1, the metal would have to give 1 valence electron as well, and thus the possible elements can be any metal within the group 1 of the periodic table of elements. Lithium, Potassium etc.
Answer:
X belongs to the alkali metals which can be lithium, sodium, potassium, rubidium and caesium.
Explanation:
Ionic bond: This type of bond is formed when there is a complete transfer of electrons from one element to another element. In this bonding one element is always a metal and another is a non-metal.
Chlorine is the element of group 17 and third period. The atomic number of chlorine is 17 and the symbol of the element is Cl.
The electronic configuration of the element chlorine is:-
[tex]1s^22s^22p^63s^23p^5[/tex]
Thus, chlorine need one electron to become stable and form ionic bond.
Also, the ionic compound has the formula XCl which means that the valency of X is +1.
Thus X belongs to the alkali metals which can be lithium, sodium, potassium, rubidium and caesium.