An aluminum atom possesses three valence electrons, which is most likely to occur for an aluminum atom to obtain a complete valence shell? A. The atom will gain five valence electrons.
B. The atom will lose five valence electrons.
C. The atom will gain three valence electrons.
D. The atom will lose three valence electrons.

Of the groups of elements below, which are most likely to gain electrons to become anions? a. alkali metal b. boron group c. halogen d. transition metal

Chlorophyll a had the molecular formula c55h72mgn4o5 how many atoms are in this molecule

Liquid ammonia is produced at high temperatures and under great pressure in a tank by passing a mixture of nitrogen gas and hydrogen gas over an iron catalyst. the reaction is represented by the following equation. n2(g) + 3h2(g) → 2nh3(g) changing all but one experimental condition will affect the amount of ammonia produced. that condition is a) increasing the concentration of both reactants b) changing the temperature within the tank c) decreasing the pressure within the tank. d) increasing only the amount of nitrogen present.