metals and non-metals Flashcards

1
Q

group 1 elements are also called..

A

alkali metals

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2
Q

group 7 elements are also called…

A

halogens

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3
Q

group 0 elements are also called…

A

noble gases

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4
Q

define ‘metalloids’

A

elements that have properties of metals and non-metals

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5
Q

where are metals found and why?

A

metals are found on the left because they don’t have many electrons in the outer shells

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6
Q

what ions do metals form and why?

A

metals form positive ions because they must lose electrons to gain a full outer shell

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7
Q

define ‘density’

A

how heavy it feels for its size

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8
Q

define ‘malleable’

A

bend without breaking

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9
Q

define ‘ductile’

A

can be stretched into thin wires

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10
Q

define ‘brittle’

A

break or shatter when bent

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11
Q

properties of metals

A

lustrous (shiny)
malleable
good conductor of heat and electricity
high density
solid (except mercury)
sonorous
ductile
magnetic (only iron, cobalt and nickel)

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12
Q

properties of non-metals

A

poor conductor of heat and electricity (except carbon)
weak
brittle
low density
dull sound
dull appearance
can be solid, liquid or gas

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