Examlex
Nitrogen trifluoride has ________ valence electrons.
Aging
The process of becoming older, which is characterized by a gradual decline in physiological function and an increased susceptibility to diseases.
Basic Intelligence
Basic intelligence refers to the fundamental cognitive abilities, including memory, reasoning, and problem-solving, that underpin more complex intellectual tasks.
Intellectual Endeavor
Activities or pursuits that involve serious, sustained mental effort to gain knowledge or understand complex ideas.
Hierarchically Arranged
Organized in a systematic order of ranking or gradation from the highest to the lowest.
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