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Ocean: the large body of water on the Earth. 70% of the Earth's surface

the Water Cycle: the process by which water travels through the atmosphere and land

The Suns rays heats the water.

Water evaporates to hot water vapor.

Water vapor cools down from the wind, and condenses to a cloud.

It becomes bigger and bigger and percipitates to the group in the form of rain, snow, hail, or sleet.

Surface runoff takes the water back to the ocean.

Transpiration is when water gets in the roots and stem of trees/plants.

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.

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