Relate the effect of temperature and pressure on
as to the model of a gas given by the kinetic-
molecular theory.

According to the Kinetic-molecular theory, increase in temperature causes the gas molecules' average speed and kinetic energy to increase.if the volume of the container is held constant, collision of gas molecules will be frequent and with more force on the walls of the container,making the pressure to increase.

Explanation:

Remember that a gas pressure is affected by the rapidness of moving gas molecules which is directly proportion to number of molecules hitting a unit area of the container in a unit time.Kinetic-molecular theory can be explained from Boyle's law where a decreased volume of a container compresses the gas in the container due to reduced area,making gas molecules to collide with high frequency rising the pressure exerted by the gas.

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.