GOB Chemistry
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Identify the correct explanation for why compounds of group 1A (1) and group 2A (2) elements are more abundant compared with that of group 8A (18) elements.
Provide condensed electron configurations for Se and the most stable ion it forms.
When they react, nonmetals gain electrons to complete their octets and attain electron configurations like those of the noble gases.
When oxygen (O) reacts, how many electrons does it gain? Which noble gas configuration does it attain?
What is the electron configuration of Fe3+?
Choose the element that can form a compound with an expanded octet (does not obey the octet rule)?
Which of the following valence orbital filling diagram best represents the ground state of Cl–?