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 rules

The s - block has elements with outer - shell 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 d and f electrons indicates that the elements are in the d and f blocks. Transition metals (d - block) and inner - transition metals (f - block) are metals. So, the blocks are d and f, and the elements are metals.

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

Since there are f electrons, the elements are in the f block. Inner - transition metals (f - block) are metals. So, the block is f, and the elements are metals.

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

The presence of d electrons indicates that the elements are in the d block. Transition metals (d - block) are metals. So, the block is d, and the elements are metals.

Answer:

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