What phase of matter has enough kinetic energy to partially overcome the intermolecular attraction between the particles, allowing the particles to flow and take the shape and volume of whatever container the sample is in?

gas
liquid
plasma
solid

Liquid

Explanation:

It is liquid because liquid will always take shape of the container. For example, take a square container and a round cup, and a 1/d of water, put it in the square container and it will take the shape of that container, but take the SAME water and put it in the cup and now its in a circle cause it is taking shape.

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.