Question

What is the correct formula for calcium fluoride?


A.


CaF2


B.
CaF


C.


Ca2F


D.


Ca2F2

Answer 1

@gleem

Answer 2

@Michele_Laino

Answer 3

Please, keep in mind that Ca is an alkali metal earthy. Namely all chemical elements belonging to the second column from left of periodic table, are called alkali metals earthy, and their electronegativity is 2

Answer 4

Sorry not electronrgativity, but oxidation number, namely oxidation number of Ca is 2,
whereas oxidation number of F is 1, so?

Answer 5

@TheAsker2002

Answer 6

difference of electronnegativity between Ca and F is high, so chemical bond between them is ionic.

Answer 7

A i think

Answer 8

that's right!

Answer 9

YES!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer 10

yes!!!

Answer 11

@TheAsker2002 please keep in mind my little explanation it is very important