Answered

riod?
Which period of the periodic table do the elements given below belong to?
What are the full names of Na, Al and CI? Why are sodium and chlorine
more active elements?
ically
Elements
Na
Mg
Al Si
P
C
Electronic configuration 2, 8, 12, 8,2 2, 8,3 2, 8,4 2,8,5 2,8,6 2,8,7
le of the atomic structure of



Answer :

GinnyAnswer
The elements given in the question belong to different periods of the periodic table. Here are the full names of Na, Al, and Cl:

1. Na stands for Sodium.
2. Al stands for Aluminum.
3. Cl stands for Chlorine.

Sodium and chlorine are more active elements because of their electron configurations and the tendency to achieve a stable electron configuration through bonding with other elements.

Sodium has one electron in its outermost shell, and chlorine has seven electrons in its outermost shell. Both elements aim to achieve a stable electron configuration similar to that of noble gases like neon, which have a full outer shell.

Sodium can easily lose one electron to achieve a stable configuration like that of neon. Chlorine can easily gain one electron to complete its outer shell and attain a stable configuration. This reactivity makes sodium and chlorine more active elements.