Human population growth in 2018 was 1.07% . If this rate of growth remains constant, in what year will the human population double?

Double time = 65.42 years

Explanation:

We can find what year the human population would double using the rule of 70. This is given as;

Double time = 70 / rate(r)

From the question;

Double time = ?

Rate = 1.07%

Inserting into the equation;

Double time = 70 / 1.07

Double time = 65.42 years

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.