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Chapter 9 (sec 2 (The two atoms that are held together in a covalent bond…
Chapter 9
sec 2
The two atoms that are held together in a covalent bond may be atoms of the same element or different elements. When atoms of different elements bond together, it forms a covalent compound.
Covalent bonds form because the shared electrons fill each atom’s outer energy level and this is the most stable arrangement of electrons.
A covalent bond is the force of attraction that holds together two atoms that share a pair of valence electrons. Covalent bonds form only between atoms of nonmetals.
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Atoms form chemical bonds to achieve a full outer energy level, which is the most stable arrangement of electrons.
There are three different types of chemical bonds: covalent, ionic, and metallic bonds.
A chemical bond is a force of attraction between atoms or ions. Bonds form when atoms share or transfer valence electrons.
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A few rules can be applied to name simple covalent compounds: name the left-most element in the periodic table first, add -ide to the second named element, and use prefixes for the numbers of atoms.
Covalent bonds are responsible for many of the properties of covalent compounds. Covalent compounds have relatively low boiling points, cannot conduct electricity, and may not dissolve in water.
Covalent compounds contain two or more nonmetallic elements held together by covalent bonds, in which atoms share pairs of valence electrons. A molecule is the smallest particle of a covalent compound that still has the properties of the compound.
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