<span>Ca has 2 valence electrons and F has 7, they would end up having to share electrons but Ca or F has to keep one because in total there are 9 valence elections and only 8 are needed to make this pair "happy". that's all i can provide. i hope it helped some</span>
Answer:
D
Explanation:
Because do all of that and then you do a conclusion
Answer:
Option c. Neutral
Explanation:
Only neutral solution gives a green colouration to a pH paper