Chemistry: Compounds and Bonding

Crystalline solids with high melting points

Atoms held together by sharing electrons

Neutral group of atoms joined together by covalent bonds

<p>A compound composed of molecules</p> Signup and view all the answers

<p>Molecule consisting of two atoms</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>Collections of positively and negatively charged ions arranged in repeating three-dimensional patterns</p> Signup and view all the answers

<p>Molecular compounds have lower melting and boiling points than ionic compounds</p> Signup and view all the answers

<p>gases and liquids</p> Signup and view all the answers

<p>shows how many atoms of each element a molecule contains</p> Signup and view all the answers

<p>False</p> Signup and view all the answers

<p>electron sharing occurs so that atoms attain the electron configuration of noble gases</p> Signup and view all the answers

<p>Two atoms held together by a sharing of a pair of electrons</p> Signup and view all the answers

<p>represents the shared pair of electrons of the covalent bond by two dots</p> Signup and view all the answers

<p>represents the covalent bonds by dashes and shows the arrangement of covalently bonded atoms</p> Signup and view all the answers

<p>A pair of valence electrons that is not shared between atoms</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>A covalent bond where one atom contributes both bonding electrons</p> Signup and view all the answers

<p>a structure that occurs when it is possible to draw two or more valid electron dot structures that have the same number of electron pairs for a molecule or ion</p> Signup and view all the answers

<p>1.Odd number of valence electrons, 2.Less than 8 electrons around the central atom, 3.More than 8 electrons around the central atom ('expanded octet')</p> Signup and view all the answers

<p>When two atoms combine, this model assumes that their atomic orbitals overlap to produce molecular orbitals</p> Signup and view all the answers

<p>A molecular orbital that can be occupied by two electrons of a covalent bond</p> Signup and view all the answers

<p>When two atomic orbitals combine to form a molecular orbital that is symmetrical around the axis connecting two atomic nuclei</p> Signup and view all the answers

<p>When a pi molecular orbital is filled with two electrons</p> Signup and view all the answers

<p>The repulsion between electron pairs causes molecular shapes to adjust so that the valence-electron pairs stay as far apart as possible</p> Signup and view all the answers

<p>the bonding of electrons are shared equally or SYMMETRICAL SHAPE</p> Signup and view all the answers

<p>The more electronegative atom attracts electrons more strongly and gains a slightly negative charge.The less electronegative atom has a slightly positive charge or ASYMMETRICAL</p> Signup and view all the answers

<p>one end of the molecule is slightly negative and the other end is slightly positive or has loan pairs</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>breaking covalent bonds throughout the solid</p> Signup and view all the answers

<p>Attractive forces that hold particles together in ionic, covalent, and metallic bonds</p> Signup and view all the answers

<p>Can hold together identical particles or two different types of particles</p> Signup and view all the answers

<p>Weak forces that result from temporary shifts in the density of electrons in electron clouds</p> Signup and view all the answers

<p>Attraction between oppositely charged regions of POLAR molecules</p> Signup and view all the answers

<p>H+ F,O,N</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>Triple&gt;double&gt;single</p> Signup and view all the answers

<p>Atoms form double or triple covalent bonds if they can attain a noble gas structure by sharing two pairs or three pairs of electrons.</p> Signup and view all the answers

<p>The actual bonding of oxygen atoms in ozone is a hybrid, or mixture, of the extremes represented by the resonance force.</p> Signup and view all the answers

<p>Electronegativity is a measure of an atom's pull on electrons in a chemical bond.</p> Signup and view all the answers

<p>Melting a network solid would require breaking a covalent bonds throughout the solid.</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>the distance between the nuclei of two bonded atoms</p> Signup and view all the answers