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Chemestry Y12 - Pysical Chemistry > Atomic Structure > Flashcards

Atomic Structure Flashcards

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1
Q

What is an atom?

2

A

The fundamental piece of matter

And the basic unit

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2
Q

What one thing isn’t made of atoms?

A

Energy

Otherwise everything is ,add of atoms

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3
Q

What does basic unit mean?

A

The smallest particle of a chemical element

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4
Q

What is Thompson’s plum pudding model?

A

A positively charged sphere with negatively charge electrons

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5
Q

What is Rutherford’s atomic model?

A

A positively charge nucleus in the centre with negatively charged electrons orbiting it

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6
Q

What is Bohr’s atomic model?

A

The one we use today

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7
Q

What is the nucleus?

3

A

The centre of the atom

Tiny

Dense

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8
Q

What does the nucleus contain?

2

A

Protons

Neutrons

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9
Q

What is the collective name for protons and neutrons?

A

Nucleons

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10
Q

What do electrons do?

A

Orbit the nucleus in shells

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11
Q

Do electrons impact the mass of the atom?

A

No

It doesn’t contribute much to the mass of the atom

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12
Q

What is the relative mass of protons?

A

1.0

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13
Q

What is the relative mass of neutrons?

A

1.0

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14
Q

What is the relative mass of electrons?

A

1/1836

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15
Q

What is the relative charge of protons?

A

+1

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16
Q

What is the relative charge of neutrons?

A

0

17
Q

What is the relative charge of electrons?

A

-1

18
Q

What are protons equal to?

A

Electrons

19
Q

What is the mass number?

A

The number of nucleons

Protons and neutrons

20
Q

What is the atomic number?

A

The number of protons

21
Q

How do you know which is the mass number and which is the atomic number?

A

The mass number will be the bigger number

22
Q

How is the periodic table ordered?

A

By atomic number

23
Q

How to you figure out the number of electrons?

A

It’s the same as protons so look at the atomic number

Chemestry Y12 - Pysical Chemistry (38 decks)

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