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11 questions
Ions are formed when atoms...
lose or gain electrons
lose electrons
gain electrons
gain neutrons
Ions are formed because atoms want to obtain the stable arrangement of a noble gas.
True
False
In general, metal atoms lose electrons forming _____ ions, non-metal atoms gain electrons forming _____ ions.
negative, positive
negative, negative
positive, negative
positive, positive
Ionic bonds are the _____ between positive and negative ions.
covalent bonds
metallic bonds
polar bonds
electrostatic attraction
Ionic compounds form _____
ionic molecules
ionic lattice
metallic lattice
covalent networks
Ionic compounds have ____ melting points and _____ boiling points because _____ ionic bonds must be broken in order to break the lattice.
low, low, weak
low, high, weak
low, high, strong
high, high, strong
Many ionic compounds are soluble in water.
True
False
When ionic compounds dissolve, the lattice structure remains intact.
True
False
Ionic compounds always conduct electricity - whether they are in the solid, liquid or gas form.
True
False
Ionic compounds conduct electricity only when molten or in a solution because...
electrons are free to move
water is free to move
molecules are free to move
ions are free to move
Conduction in ionic compounds can be explained by the movement of ions towards oppositely charged electrodes.
True
False
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