some patterns of electron - configuration are listed below. in each case, g stands for a noble - gas core…

some patterns of electron - configuration are listed below. in each case, g stands for a noble - gas core and n, m, or o stand 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 of these elements lie? would they be metals, nonmetals, metalloids, some of each? use your answers to these questions to com\n\n| electron configuration of atoms | location of elements (check all that apply) |\n|--|--|--|--|\n| | blocks | metals or nonmetals? |\n| gns^2md^10np^2 | s p d f | metals nonmetals metalloids |\n| gns^2 | s p d f | metals nonmetals metalloids |\n| gns^2md^10np^5 | s p d f | metals nonmetals metalloids |
Answer
Explanation:
Step1: Recall electron - configuration and block rules
Elements with the general electron - configuration $[G]ns^{2}md^{10}np^{2}$ have their outermost electrons in the p - orbital after filling the d - orbitals. The last electron enters the p - subshell, so they are in the p - block. These elements include silicon and germanium which are metalloids.
Step2: Analyze $[G]ns^{2}$
Elements with the electron - configuration $[G]ns^{2}$ have their outermost electrons in the s - orbital. They are in the s - block. These are mainly alkaline earth metals.
Step3: Analyze $[G]ns^{2}md^{10}np^{5}$
Elements with the electron - configuration $[G]ns^{2}md^{10}np^{5}$ have their outermost electrons in the p - orbital. They are in the p - block. These are halogens which are non - metals.
Answer:
| electron configuration of atoms | blocks | metals or nonmetals? |
|---|---|---|
| $[G]ns^{2}md^{10}np^{2}$ | p | metalloids |
| $[G]ns^{2}$ | s | metals |
| $[G]ns^{2}md^{10}np^{5}$ | p | nonmetals |