The property which is related to the number of electrons in the outer main energy level of the elements from the alkali metals to the halogens is; Choice A: The group number
The correct question is;
Which is related to the number of electrons in the outer main energy level of the elements from the alkali metals to the halogens?
Which is related to the number of electrons in the outer main energy level of the elements from the alkali metals to the halogens? I. Group number
Which is related to the number of electrons in the outer main energy level of the elements from the alkali metals to the halogens? I. Group number II. Period number
Which is related to the number of electrons in the outer main energy level of the elements from the alkali metals to the halogens? I. Group number II. Period number A. I only
Which is related to the number of electrons in the outer main energy level of the elements from the alkali metals to the halogens? I. Group number II. Period number A. I only B. II only
Which is related to the number of electrons in the outer main energy level of the elements from the alkali metals to the halogens? I. Group number II. Period number A. I only B. II only C. Both I and II
Which is related to the number of electrons in the outer main energy level of the elements from the alkali metals to the halogens? I. Group number II. Period number A. I only B. II only C. Both I and II D. Neither I nor II
Evidently, the group an element belongs to is defined by the number of electrons in its outer energy level.
As such, only the group number is defined by the number of electrons in its outer energy level.
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