C2 Chemistry - ionic bonding, covalent bonding and metallic bonding Flashcards

1
Q

what is an ionic compound?

A

electrons transferred from metal atoms to non metal atom, forming ions and resulting in ionic compound

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2
Q

what is an ionic bond?

A

force of attraction between oppositely charged ions

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3
Q

metal ions
non-metal ions
lose or gain electrons?
postive/negative??

A

metal ions - lose, positively charged

non-metal ions - gain, negatively charged

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4
Q

what is covalent bonding?

A

non-metals share electrons to have a outer shell full of electrons

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5
Q

how many electrons can a metal have on its outer shell?

A

8

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6
Q
what can be used in covalent bonding:
gases
liquids
solids
low melting/boiling point
high melting/boiling point
conduct electricity 
dont conduct electricity
A

gases
liquids
low melting/boiling points
cant conduct electricity

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7
Q

what are noble gases?

A

elements that have a full outershell

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8
Q

what is metallic bonding?

A

the atoms in a metal are held together by metallic bonds

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9
Q

what is the attraction in metallic bonding between?

A

delocalised electrons and metal ions

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10
Q

what are the two properties of metallic bonding?

A

high melting and boiling points

conducting electricity

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11
Q

why do metallic bonding have high M and B points

A

metallic bonds are very strong and take a long time to break down

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12
Q

why does metallic bonding conduct electricity?

A

metals carry free electrons around that can move freely

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