Why does Ca have a lower ionization energy than He
ill give u brainliest :)

All the elements are arranged by melting points on the periodic table. in row they go from metals to gasses. in the row from sodium to argon, sodium is more reactive than the one on its right, magnesium.

Just took the quiz on edgenuity and the correct answer is "c.  4.54 x  10–12  j"

Answer    "a salt" would be the best answerexplanationsalts can be defined as ionic compounds that are neither acids nor bases. nacl is an example of a salt, and its ionic.an enzyme is an organic compound which is covalently bonded, not ionically bonded.acids are generally held together by covalent bondsan element does not need any bonds to exist

I’m really not sure what’s the answer. sorry