Hiya! I need to know a few things Are the following compounds Ionic, covalent, or metallic?
NaI
lactose
iodine
Sn
Then these following I need to know if they are ionic, Nonpolar covalent, polar covalent, or metallic!
Iodine Chloride
Co(NO3)2
Sulfur, S8
Pb
Thank you in advance!

by cartels in other countries, shipped by air, mail, or land. i cant really see your answer choices : /

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.

the answer is option a.