An element with the general electron configuration for its outermost electrons of ns2np1 would be in which element group?
1 Answer
Group 13.
Explanation:
As you know, the periodic table is organized in blocks that correspond to the location of an element's highest-energy electrons.
Elements that have their highest-energy electrons in the
In your case, the electron configuration of the outermost electrons, i.e. valence electrons, in an atom looks like this
ns2np1
Now, the highest-energy electron is located in a
This places the element in the
For any energy level, i.e. period in the periodic table, the first element located the
The electron configuration for the outermost electrons of an element located in group 13 will thus be
ns2np1
Since this matches the electron configuration given to you, you can say that this unknown element is located in group 13.
Similarly, you will have
ns2np2→ an element located in group 14ns2np3→ an element located in group 15ns2np4→ an element located in group 16ns2np5→ an element located in group 17ns2np6→ an element located in group 18