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bwhs-IPC > ch 5.3 > Flashcards

ch 5.3 Flashcards

1
Q

what are valence electrons?

A

outermost e-‘s that are responsible for chemical properties.

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2
Q

elements in the same group have the same number of…

A

valence electrons

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3
Q

to get full outer energy level, METALS…

A

lose e-

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4
Q

to get full outer energy levels, NONMETALS…

A

gain e-

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5
Q

to get full outer energy levels, METALLOIDS…

A

share e-

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6
Q

which is group 1 (valence electrons)?

A

alkali metals

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7
Q

what happens to reactivity when you go down a group?

A

it increases

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8
Q

what group is the most reactive metals?

A

alkali metals

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9
Q

what is group 2 (2 valence electrons)?

A

alkaline earth metals

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10
Q

what two elements can be found in group 2?

A

magnesium (used to make steel) and calcium

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11
Q

what is group 3?

A

boron family

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12
Q

what element is most abundant in earth’s crust?

A

aluminum

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13
Q

characteristics of boron

A

used to make borax, brittle

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14
Q

what is group 4?

A

carbon family

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15
Q

electron characteristics of carbon family (group 4)

A

can gain 4, lose 4, or share electrons

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16
Q

second most abundant element in earth’s crust

A

silicon

17
Q

what is group 5, how many gained electrons?

A

nitrogen family, gains 3 electrons

18
Q

what is used in fertelizers?

A

nitrogen, phosphorus, and sulfur

19
Q

what is group 6, how many gained electrons

A

oxygen family, gains 2 electrons

20
Q

what can oxygen be used for?

A

very abundant element, can be used for digestion

21
Q

what is group 7, and what does the name mean

A

halogen family; means salt-former.

22
Q

what are the most reactive nonmetals

A

group 7 halogens

23
Q

what do halogens react with, and what does it do

A

alkali metals, it forms salt

24
Q

what element in group 7 is most reactive

A

flourine

25
Q

what is group 8, and what is its reactivity

A

noble gases, non-reactive

26
Q

which group outermost shell is full?

A

group 8 (noble gases)

27
Q

what group is in <1% of earth’s atmosphere

A

noble gases

28
Q

transition metals characteristics

A

solid; ductile, malleable, conductors

29
Q

which groups are transition metals

A

groups 3-12

30
Q

which transition metals elements produce a magnetic field

A

iron, copper, and nickel

31
Q

which series are rare earth elements in

A

lanthanide series, actinide series; some are radioactive

bwhs-IPC (8 decks)

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