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Inorganic Chemistry > Periodicity > Flashcards

Periodicity Flashcards

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1
Q

What blocks can an element be classified as?

A

s, p, d or f

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2
Q

How is an element classified?

A

By its position in the periodic able (proton number)

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3
Q

What is the trend in atomic radius for period 3? Why?

A

Decrease
> more protons
> greater attraction to outer e-

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4
Q

What is the trend in first ionisation energy for period 3? Why?

A

Increase
> increased radius and protons
> similar shielding
> increased nuclear attraction

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5
Q

What is the trend in melting point for sodium to aluminium? Why?

A

Increase
> metallic bonding
> greater +ive charge
>increased electrostatic forces

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6
Q

What is the melting point of silicon? Why?

A

Very high
> macromolecular
> many strong covalent bonds

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7
Q

What is the trend in melting point for phosphorus to chlorine? Why?

A

Remains low
> simple covalent
> weak vdw

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8
Q

What is the melting point of argon? Why?

A

Very low
> monatomic
> weak vdw

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Inorganic Chemistry (4 decks)

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