A hot pot of soup has a cool lid placed on it.
Where does condensation occur?
A. The soup becomes hot on the stove.
B. Hot water in the soup evaporates into water vapor.
C. Water vapor hits the cool lid and changes to water droplets.
D. Heavier substances in the soup remain at the bottom of the
pot.

The condensation occurs when water vapor hits the cool lid and changes to water droplets.

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.