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| Orderly crystal shapes,high melting points and electrical conductivity when dissolved in water are properties of ionic compounds |
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| A nonpolar bond is formed when two atoms share electrons unequally. |
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| A low melting point is one of the property of molecular compounds. |
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| The properties of solid metals can be explained by the structure of and the bonding among the metal atoms |
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| When electrons are transferred between two atoms,a covalent bond is formed. |
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| Atoms tend to be stable and nonreactive if they have six valence electrons. |
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| An atoms valence electrons that have the highest energy |
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| Which of the following groups contains the most reactive elements? |
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Term
| In an electron dot diagram,two pairs of shared electrons represents a |
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| Compared to ionic compounds,molecular compounds generally have |
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| A mixture made of two or more elements, at least one of which is a metal is called a(n) |
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| Which of the following terms means that metals cab be rolled into thin sheets,as in aluminum foil or into complex shapes? |
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| Which of the following best describes a metal crystal |
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| a. positive metal ions surrounded by freely moving valence electrons |
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| The chemical name for the compound with the formula Na(tiny 2)s is |
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| d. two pairs of electrons shared between two atoms |
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| A chemical bond formed when two atoms share electrons is called a(n) |
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| Which of the following is a property of ionic compound? |
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Definition
| d.they form hard,brittle crystals. |
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| Which is a property shared by most molecular compounds? |
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| An ionic bond is the attraction between |
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Definition
| d. oppositely charged ions. |
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| Electrons involved in bonding between atoms are |
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| Magnesium bromide is an ionic compound with the chemical formulaMgBr(small 2).What does the "2" tell you? |
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Definition
| d. there are two bromide ions for every magnesium ion. |
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Term
| Ions that are made of more than one item are examples of |
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| When an atom loses an electron,it becomes a |
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| In the chemical formula for an ionic compound,which item is written first |
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Definition
| c. the name of the positive ion |
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Term
| Ionic compounds are electrically |
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Term
| An electron dot diagram shows an atom's number of |
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Definition
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Term
| When an atom loses or gains electrons, it becomes a(n) |
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Definition
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| When an atom loses an electron, it |
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Definition
| b. becomes a positive ion |
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| A covalent bond in which electrons are shared equally |
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Definition
| A covalent bond in which electrons are shared unequally |
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| tell the ratio of elements in a compound. |
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| To write a formula for an ionic compound you need to |
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Definition
| write symbol o the positive ion and then the symbol of the negative ion. |
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| is the attraction between oppositely charged ions |
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| can not be broken down into any other substances by physical or chemical means. |
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