That's a ionic compound because it has a metal and polyatomic parts within the chemical formula.
Answer:
About one valence electron
Explanation:
Obviously, removing that electron gives us [Ar] (same configuration as K1+), which is a noble gas and has 8 electrons. Valence electrons are generally regarded as being 'the outermost electrons' for a given atom. Therefore, with neutral potassium, there is one valence electron
Answer:
210.15 g
Explanation:
The molar mass of nitrogen is approximately 14.01 g/mol.
14.01*15=210.15
Accid rain is essentially rain but with not water but pollution from the atmosphere. Hope it helped. :)