5 points
Demarcus wants his friend, Alvin, to guess which planet he is describing.
He tells Alvin that the planet is rocky and doesn't have any moons. What
other clue would let Alvin be certain which planet Demarcus is describing?
0
It has rings round it.
It has liquid water on its surface.
O
It is very hot in daytime.
O
It has a thick atmosphere.

It has a thick atmosphere maybe I'm sorry if its not true

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.

its first and third is your answer i did the qustion the fourth isnt right