group 0 elements Flashcards

1
Q

how many electrons do group 0 elements have on their outer shell?

A

8 (other than helium)

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2
Q

what is special about noble gases?

A

they have a full, stable shell of electrons

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3
Q

what are group 0 elements at room temp?

A

colourless gases

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4
Q

inert

A

unreactive

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5
Q

list 3 properties of group 0

A

non-flammable
inert
low boiling point (gas at room temp)

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6
Q

describe the trend in boiling points going down the group 0?

A

it increases

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7
Q

describe the trend in atomic mass going down the group 0?

A

it increases

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8
Q

why does the boiling point increase going down the group?

A

there is an increase in the number of electrons in each atom, leading to greater intermolecular forces between them which need to be overcome

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9
Q

why are group 0 elements unreactive?

A

they have a full valence shell so no tendency to gain/lose any electrons

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10
Q

what type of atoms do they exist as?

A

monoatomic

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