What electron configuration makes an atom stable and not likely to react?

A noble gas electron configuration is the least reactive electron configuration.  A noble gas configuration is present when the valance electron shell is filled.  Since the goal of chemical reactions is to create a full valence shell atoms that already have a full valence shell would not react and would therefore be stable.

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Read the sentences below in 1962, i tried to enroll as the first black student at the university of mississippi. the governor of mississippi blocked my entrance which best describes the verbs used in the sentences? o they are past tense verbs, which are often used in narrative essays o they are past tense verbs, which are not often used in narrative essays. o they are future tense verbs, which are often used in narrative essays o they are future tense verbs, which are not often used in narrative essays.