Question

some patterns of electron configuration are listed below. in each case, g stands for a noble - gas core and n, m, or o stand for integer numbers like and so on. note: assume g is lighter than rn. think about the chemical elements made of atoms with an electron configuration that matches each pattern. in what block or blocks of the periodic table do these elements lie? would they be metals, nonmetals, metalloids, some of each? use your answers to these questions to complete the table.

electron configuration of atoms	location of elements (check all that apply)
gns²of⁷md¹	s p d f	metals nonmetals metalloids
gns²mf¹¹	s p d f	metals nonmetals metalloids
gns¹md⁷	s p d f	metals nonmetals metalloids

Explanation:

Step1: Recall periodic - table block classification

The s - block consists of elements with valence electrons in s - orbitals, p - block in p - orbitals, d - block in d - orbitals and f - block in f - orbitals.

Step2: Analyze [G]$ns^{2}of^{7}md^{1}$

The presence of f and d electrons indicates that the elements are in the f and d blocks. Elements with such electron - configurations are typically metals.

Step3: Analyze [G]$ns^{2}mf^{11}$

Since there are f electrons, the elements are in the f - block. These are lanthanides or actinides, which are metals.

Step4: Analyze [G]$ns^{1}md^{7}$

The presence of d electrons places the elements in the d - block. D - block elements are metals.

Answer:

electron configuration of atoms	blocks	metals or nonmetals?
[G]$ns^{2}mf^{11}$	f	metals
[G]$ns^{1}md^{7}$	d	metals