ELECTRICAL CONDUCTIVITY AND METALS Flashcards

1
Q

ELECTRIC CURRENT IS (…)

A

A FLOW OF ELECTRONS OR IONS

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2
Q

ELECTRONS HAVE A (…)

A

NEGATIVE CHARGE

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3
Q

IONS HAVE (…)

A

NEGATIVE OR POSITIVE CHARGE

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4
Q

WHEN ELECTRONS OR IONS MOVE THEY CAN CAUSE THE MATERIAL THEY ARE IN TO (…)

A

CONDUCT ELECTRICITY

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5
Q

THE ELECTRIC CURRENT IS (…)

A

THE FLOW OF THE ELECTRONS OR IONS

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6
Q

IONIC COMPOUNDS ONLY CONDUCT ELECTRICITY WHEN (…)

A

MOLTEN OR IN SOLUTION

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7
Q

IONIC COMPOUNDS ARE MADE OF (…)

A

A LATTICE OF POSITIVE AND NEGATIVE IONS

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8
Q

SOLID IONIC COMPOUNDS DONT CONDUCT (…)

A

ELECTRICITY BECAUSE THE IONS ARENT ABLE TO MOVE AROUND

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9
Q

HEN AN IONIC COMPOUND IS DISSOLVED (…)

A

THE IONS SEPARATE AND ARE ABLE TO MOVE IN THE SOLUTION THAT MEANS THAT THE COMPOUND CAN CONDUCT ELECTRICITY

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10
Q

WHEN AN IONIC COMPOUND MELTS (…)

A

IONS ARE ABLE TO MOVE SO THE COMPOUND CAN CONDUCT ELECTRICITY

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11
Q

METALS ARE HELD TOGETHER BY (…)

A

METALLIC BONDING

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12
Q

HOW IS THE METAL’S STRUCTURE

A

-METALS HAVE A GIANT STRUCTURE OF POSITIVE IONS SURROUNDED BY A SEA OF DELOCALISED ELECTRONS

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13
Q

WHAT IS A METALLIC BONDING

A

THE ELECTROSTAIC ATTRACTION BETWEEN THE NUCLEI OF THE POSITIVE IONS AND THE ELECTRONS

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14
Q

WHAT GIVES METALS PROPERTIES

A

THE METALLIC BONDING

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15
Q

METALS ARE GOOD FOR (…)

A

GOOD CONDUCTORS OF ELECTRICITY AND HEAT

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16
Q

HOW CAN METALS PRODUCE ELECTRICITY

A

THANKS TO THE DELOCALISED ELECTRONS THAT MOVE THROUGH THE STRUCTURE

17
Q

WHAT DOES THE MOVEMENT OF ELECTRONS ALSO MEANS

A

THAT ENERGY CAN BE TRANSFERRED QUICKLY THROUGH THE MATERIAL, SO METALS ARE GOOD CONDUCTORS OF HEAT

18
Q

WHAT MAKES METALS MALLEABLE

A

THE LAYERS OF IONS IN A METAL THAT CAN SLIDE OVER EACH OTHER

19
Q

WHAT DOES IT MEAN THAT METAL IS MALLEABLE

A

IT MEANS THAT THEY CAN BE HAMMERED OR ROLLED INTO FLAT SHEETS