The bonds of the products store 22 kJ more energy than the bonds of the reactants. How is energy conserved during this reaction?
O A. The reaction system absorbs 22 kJ of energy from the
surroundings.
B. The reaction creates 22 kJ of energy when bonds form.
C. The reaction uses up 22 kJ of energy when bonds break.
D. The surroundings absorb 22 kJ of energy from the reaction
system.

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.

hypostyle hall;