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Covalent bonding

Mr. Herrington

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Across
5.a covalent bond in which one atoms contributes both bonding electrons
9.when a pi molecular orbital is fileld with two electrons
10.a compound that is composed of molecules
16.a structure that occurs when it is possible to draw two or more valid electron dot structures that have the same number of electrons pairs for a molecule or ion
17.the repulsion between electron pairs which cause molecular shapes to adjust so that the valence electron pairs stay as far apart as possible
18.a neutral group of atoms joined together by covalent bonds
19.atomic orbitals that mix to form the same total number of equivalent hybrid orbitals
20.atoms held together by sharing electrons are joined by this type of bond
Down
1.two atoms held together by sharing a pair of electrons
2.energy required to break a bond between two covalently bonded atoms
3.orbitals that apply to the entire molecule
4.two atomic orbitals combine to form a molecular orbital that is symmetrical around the axis connecting two atomic nuclei
6.two weakest attractions between molecules
7.a molecular orbital that can be occupied by two electrons of a covalent bond
8.a molecule consisting of two atoms
11.a chemical formula of a molecule or compound that shows the kinds and numbers of atoms present in a compound
12.a pair of valence electrons that are not shared between atoms
13.represents the covalent bonds by dashes and shows the arrangement of covalently bonded atoms
14.an angle of 109.5 degrees between H, C, and h
15.a tightly bound group of atoms that has a positive or negative charge and behaves a a unit

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