E.OY Revision [2023] Flashcards

1
Q

What is an isotope?

A

Atoms of the same element, with different mumbers of neutrons

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2
Q

What is the relative mass of a proton?

A

1

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3
Q

What is the relative mass of electrons?

A

0/very small

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4
Q

What is the relative mass of protons?

A

1

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5
Q

What is the charge of an electron?

A

-1

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6
Q

What is the charge of an neutron?

A

neutral

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7
Q

What is the charge of a proton?

A

+1/1

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8
Q

Why can graphite conduct electricity? [2]

A

It has a delocalised electron, that can carry an eletrical charge throughout the whole structure.

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9
Q

What is the formula of Buckminsterfullerene?

C10
C20
C40
C50
C60
C70
C80
C90

A

Answer: C60

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10
Q

What are Alloys? And why are they harder than pure metals?

A

Alloy-mixtures of metal, with other elements (normally metals).

  • Because different size atoms distort the layers, this means they can’t slide over each other.

-Therefore, this is why alloys are harder than pure metals.

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