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covalent    
a. 共有原子价的,共价的

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  • Covalent bond - Wikipedia
    A covalent bond is a chemical bond that involves the sharing of electrons to form electron pairs between atoms These electron pairs are known as shared pairs or bonding pairs
  • Covalent bond | Definition, Properties, Examples, Facts | Britannica
    Covalent bond, in chemistry, the interatomic linkage that results from the sharing of an electron pair between two atoms The binding arises from the electrostatic attraction of their nuclei for the same electrons
  • 5. 1: Covalent Bonds - Chemistry LibreTexts
    The sharing of electrons between atoms is called a covalent bond, and the two electrons that join atoms in a covalent bond are called a bonding pair of electrons
  • Covalent Bond: Definition, Types, and Examples - Chemistry Learner
    A covalent bond is a type of chemical bond that involves the sharing of electron pairs between atoms The binding arises from the electrostatic attraction of their nuclei for the electrons
  • Covalent: Unified Blockchain Data API for DeFi, NFTs, and dApps
    What is Covalent? Covalent offers a one-stop solution for multi-chain data accessibility With its robust indexing engine, Covalent organizes and normalizes on-chain data, making it accessible through a single API endpoint
  • Covalent Bond Definition and Examples
    A covalent bond is a chemical bond between two atoms where they share one or more pairs of electrons Usually, sharing electrons gives each atom a full valence shell and makes the resulting compound more stable than its constituent atoms are on their own
  • Covalent Compound: Definition, Properties, Types, Examples
    A covalent compound, also called a molecular compound, is formed when two or more nonmetal atoms bond by sharing electrons This type of bonding is known as a covalent bond Covalent compounds usually exist as individual molecules with a fixed number of atoms arranged in a specific shape
  • 7. 3: Covalent Bonding - Chemistry LibreTexts
    The best guide to the covalent or ionic character of a bond is to consider the types of atoms involved and their relative positions in the periodic table Bonds between two nonmetals are generally covalent; bonding between a metal and a nonmetal is often ionic
  • COVALENT Definition Meaning - Merriam-Webster
    Material science researchers have developed highly porous crystalline materials, known as metal-organic frameworks (MOFs) and covalent organic frameworks (COFs), capable of efficiently capturing water vapor from the atmosphere—even in extremely dry conditions
  • Chemical bonding - Covalent, Molecules, Atoms | Britannica
    As a general rule, covalent bonds are formed between elements lying toward the right in the periodic table (i e , the nonmetals) Molecules of identical atoms, such as H2 and buckminsterfullerene (C60), are also held together by covalent bonds





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