Atoms and Bonding
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| when an atom loses an electron | it becomes a positive ion
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| each family in the periodic table has its own characteristic properties | based on the number of valence electrons
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| an ionic bond is the attraction between | oppositely charged ions
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| polyatomic ions | ions that are made of more than one atom
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| ionic compounds | form hard, brittle crystals with characteristic shapes
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| ionic compounds conduct electricity | when dissolved in water
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| covalent bond | a chemical bond formed when two atoms share electrons
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| a double bond | two pairs of electrons shared between two atoms
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| s property shared by most molecular compounds | low melting point
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| molecular compounds do not conduct electricity | because they do not break up into ions
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| a covalent bond in which electrons are shared unequally | is polar
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| in a chemical formula for an ionic compound | the positive ion is written first
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| electrons involved in bonding between atoms are | valence electrons
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| the greatest number of valence electrons an atom can have is | 8
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| what happens when water and oil are poured into the same container | the liquids do not mix
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| ionic compounds are | electrically neutral
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| malleable | means that metals can be rolled into thin sheets or beaten into complex shapes
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| alloy | a mixture that is made of two elements, one that is a metal, and has the properties of metal
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| ad advantage of alloys over pure metals | alloys resist rust
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| steel is an alloy combined with | iron
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| examples of alloys | brass and steel
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| a metal crystal | positive metal ions surrounded by freely moving valence electrons
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| ductile | means that metals can be pulled into thin strands or wires
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| metallic bond | the attraction between a positive metal ion and the electrons surrounding it
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| a strong alloy containing carbon, iron, and another metal like chromium or nickel used to make construction equipment is | steel
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| steel | has strength, is resistant to rust, and does not readily react with water
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| valence electrons | shown on electron dot diagrams, transferred or share in bonding, and are loosely held by the nucleus
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You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
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Created by:
Mrs. Gordon
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