What is true about equinox? A. Day and night are equal in length. B. Shadows in the afternoon are longest. C. Nights are longest. D. Days are shortest.

Which best describes why nh4+ can form an ionic bond with ci-?

What element has similar physical and chemical properties as boron.

With the largest atoms and the smallest number of valence electrons and with the smallest atoms and the greatest number of valence electrons are the most reactive. a. nonmetals; metals b. nonmetals; transition elements c. transition elements; metals d. metals; nonmetals