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GCSE Chemistry - Paper 1 > C1 - Atomic Structure > Flashcards

C1 - Atomic Structure Flashcards

1
Q

Define element.

A

substance made up of 1 type of atom

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2
Q

Define compound.

A

substance made up of 2 or more elements chemically bonded together

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3
Q

Define mixture.

A

substance made up of 2 or more elements not chemically bonded together

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4
Q

What is a proton?

A

positively charged particle

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5
Q

What is an electron?

A

negatively charged particle

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6
Q

What is a neutron?

A

neutrally charged particle (zero charge)

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7
Q

What is the electron configuration for an atom?

A

2,8,8…

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8
Q

What is the nucleus of an atom made up of?

A

protons & neutrons

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9
Q

What is the charge of the nucleus of an atom?

A

positively charged

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10
Q

What is the overall charge of the atom?

A

neutrally charged

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11
Q

Who invented the plum pudding model of the atom?

A

JJ Thomson

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12
Q

What was the plum pudding model?

A

ball of positively charged mass with electrons “mixed” in

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13
Q

Who discovered protons?

A

Rutherford

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14
Q

What was the alpha scattering experiment?

A
  • alpha particles fired at gold foil
  • some particles travelled straight through
  • some particles deflected
  • some reflected right back
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15
Q

What did the particles that travelled straight through the foil suggest?

A

atoms are mostly made up of empty space

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16
Q

What did the particles that were deflected suggest?

A

centre of the atom has a positive charge

17
Q

What did the particles that were reflected suggest?

A

centre of the atom is a concentrated mass

18
Q

What is the no. of protons the same as?

A

atomic no.

19
Q

How do you calculate the no. of neutrons?

A

mass no. - atomic no.

20
Q

What is the no. of protons equal to?

A

no. of electrons

21
Q

Define ion.

A

atom that has lost or gained electrons

22
Q

Define isotope.

A

atoms that has same no. of protons but diff. no. of neutrons

23
Q

What charge does an atom that has lost electrons have?

A

positive

24
Q

What charge does an atom that has gained electrons have?

A

negative

GCSE Chemistry - Paper 1 (4 decks)

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