This table shows the magnitude of the electromagnetic force exerted by two electromagnets on each other as the distance between the two electromagnets is varied. The table provides evidence for which of the following conclusions? A. The force between any two magnets is always constant, regardless of distance. B. As the distance between electromagnets increases, the electromagnetic force also increases. C. The smaller the distance between two electromagnets, the greater the force. D. The force between two magnets depends only on the charge of the electromagnets.​

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.