Definition of expend in the AudioEnglish.org Dictionary. Meaning of expend. What does expend mean? Proper usage and pronunciation (in phonetic transcription) of the word expend. Information about expend in the AudioEnglish.org dictionary, synonyms and antonyms.
Confidence votes 36. Covalent bonds usually form between the electrons in the outer valence of an atom. For study island the answer is nonmetals and nonmetals. Covalent bonds usually form between the electrons in the outer valence of an atom. For study island the answer is nonmetals and nonmetals.
Polar covaent bonds are formed when there is a difference in  electronegativity between the atoms. Elements such as hlogens, (F,  Cl, Br, I) oxygen, nitrogen are quite electâ¦ronegative, elements  which are less electronegative that form covalent bonds include  some metals, phosphorus, hydrogen, carbon -- check out the  electronegativity table.