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.
In an ionic chemical bond, electrons from the metallic substance are transferred to the atoms of the nonmetallic substance. Covalent bonds occur between nonmetallic substances. An example would be the bond formed between two hydrogen atoms and one oxygen atom to form the compound water (H2O). In a covalent bond, the electrons are shared between the atoms. The third major type of chemical bond, the metallic bond, is formed between metallic atoms.