Conceptual Physical Science (6th Edition)

Chapter 16

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Valence electrons are situated in the outermost ... more

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2+ ion ; Magnesium is a group 2 element. It has 2 ... more

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Magnesium has two valence electrons in its ... more

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Chemical change ; A physical change is a change ... more

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MgO ; Magnesium is a group 2 element and oxygen is... more

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Two ; A covalent bond is formed by the sharing of ... more

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The polarity of the covalent bond is proportional ... more

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The left side molecule is nonpolar and the right ... more

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The oxygen molecule develops a temporary dipole ... more

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A dipole-dipole interaction is because of two ... more

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A dipole-induced interaction is an interaction ... more

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The molecule has hydrogen bonding in it as ... more

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2, 8 ; The electrons are filled in a particular ... more

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Valence electrons ; In the electron dot structure... more

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They have exactly the same electron dot structure... more

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An ion has a different number of electrons than ... more

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An atom becomes a negative ion when it gains ... more

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Fluorine has 7 valence electrons in its outermost ... more

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The elements with a tendency to lose electrons or ... more

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A negative charge that is two times the charge of ... more

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An ionic crystal is the arrangement of the ... more

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Metals easily lose electrons. ; Metals are present... more

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An alloy is a homogeneous mixture of two or more ... more

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Some of the metals like gold, silver and platinum ... more

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Generally elements with the tendency to gain ... more

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Four ; A single covalent bond is formed by sharing... more

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Two ; An oxygen atom has six valence electrons. It... more

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One ; A negatively charged oxygen ion has one ... more

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A dipole is a set of two equal positive and ... more

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Francium is the least electronegative element and ... more

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Carbon-oxygen bond ; The electronegativity of ... more

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A molecule with different atoms can be non-polar ... more

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Non-polar molecules only have induced dipole-... more

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Non-polar molecule ; A polar molecule has a ... more

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Water molecules are polar and the interaction ... more

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A chemical bond is formed by the transfer or ... more

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Ion-dipole attraction. ; An ion has permanent ... more

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The molecular attraction between two molecules ... more

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No ; Induced dipoles are formed if a non-polar ... more

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The size of the crystal is greater than the size ... more

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The positively charged balloon attracts the ... more

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2 ; The carbonate ion has a negative two units of... more

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Positive charge of 2 units of the electronic ... more

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; The magnesium ion has +2 charge on it due to ... more

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; The barium ion has a charge of +2 on it and the... more

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The difference in the electronegativities of ... more

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Fluorine is a nonpolar molecule. The molecular ... more

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The polarity of is the highest among the group, ... more

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The molecule is non-polar in nature. The only ... more

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They have exactly the same electron dot structure... more

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One ; The valence shell of fluorine contains 7 ... more

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One ; The valence shell of hydrogen contains 1 ... more

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An atom can form bonds equal to the number of ... more

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The hydrogen atom loses an electron to form a ... more

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The valence electron of sodium is the outermost ... more

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It is easier to achieve stable configuration by ... more

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Magnesium atom has two electrons in its valence ... more

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The neon atom has a stable configuration in its ... more

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For an atom with many valence electrons, it is ... more

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; The sulphuric acid has a chemical formula . It ... more

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The potassium ion is smaller than the potassium ... more

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The force between two charged particles gets ... more

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; The chemical bond between potassium and ... more

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Though the number of atoms of a particular element... more

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The mold should be a little taller than the actual... more

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The fluorine atom contains seven electrons in its ... more

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The metallic bonds are the force of attraction ... more

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It overcomes the nuclear charge and shares the ... more

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In a covalent bond, the electrons are shared by ... more

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; In an electron dot structure, a single bond is ... more

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;  In an electron dot structure, a single bond is... more

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;  In an electron dot structure, a single bond is... more

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; is a symmetric molecule in which all dipole ... more

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H, Br, CIn the molecule Br-Br, no atom contains a ... more

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; The difference between the electronegativities ... more

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  False.The electronegativity of an atom is its ... more

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True.As the number of shells increases, the ... more

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Water is a polar molecule, whereas methane is a ... more

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;   If all the polar and nonpolar bonds are ... more

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BF3 molecule has all three polar bonds, but they ... more

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  The greedy kid is negative, and the other two ... more

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The covalent bonds are formed by the sharing of ... more

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Even though the charges are balanced inside a ... more

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The electric field of any free charge is greater ... more

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The size of the bromine atoms is greater than the ... more

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The bond in is ionic but the bond in is a ... more

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The ice cube will not be pulled towards the ... more

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Structure A is the motor oil, and structure B is ... more

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A deeper understanding of nature helps in studying... more

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The open-pit mines can be used for waste disposal ... more

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A lack of education, setup cost, lack of proper ... more

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The atom which loses forms a positive ion, and the... more

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The chemical formula contains three aluminum atoms... more

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is an ionic compound. In an ionic compound, the ... more

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Metals are extracted from ores. Gold occurs in ... more

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The covalent bonds develop ionic nature as the ... more

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The number of bonds is equal to the number of ... more

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Each nitrogen atom needs three electrons to ... more

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The position in the periodic table does not decide... more

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  An ionic bond requires two ions, but in hydrogen... more

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The larger atoms can form more temporary dipoles, ... more

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