Why do atoms of Group 1 elements lose electrons to form cations where as atoms of Group 17 elements gain electrons to form anions

(1.6 × 10-19)(5.0 × 106) = c × 10d identify the missing numbers below to show the result of multiplying the numbers.

Which sentence about particles in matter is true? a. atoms are present in solids and liquids but not in gases. b. the particles of matter are in constant motion. c. the same kinds of atoms are found in different elements. d. when a solid changes to a liquid, the sizes of the particles change.

Name the intersection of plane bpq and plane cpq.