Select the correct answer.
which sentence states newton’s third law?
a.
if two objects collide, each object exerts a force in the same direction as the other.
b.
if two objects collide, each object exerts a force equal to and in the opposite direction of the other.
c.
a collision between a moving object and a stationary object is elastic.
d.
a collision between a moving object and a stationary object is inelastic.
e.
if two objects collide, the moving object exerts a greater force than the stationary object.

If two objects collide, each object exerts a force equal to and in the opposite direction of the other.

Explanation:

PLATO

alkaline metals are lithium, sodium, rubidium, potassium, cesium and francium.

alkali metals have electronegativity from 0.7 to 1, lowest in periodic table of elements, which means that alkali metals (i group in periodic table) has positive oxidation number in compounds.

electronegativity is a chemical property that describes the tendency of an atom to attract a shared pair of electrons towards itself.

alkaline metals (far left in main group) have lowest ionizations energy and easy remove valence electrons,

for example, potassium is the alkali metal and has a single valence electron in the outer electron shell.

electron configuration of potassium is: ₁₉k 1s²2s²2p⁶3s²3p⁶4s¹.

they can not exist alone in nature, because they are very reactive.