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.
When the alkali metals react with the heavier elements in the carbon group, ionic substances with cage-like structures are formed, such as the silicide M 4 Si 4 (M = K, Rb, or Cs), which contains M + and tetrahedral Si4â 4 ions.