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A-level Chemistry (OCRa) PSC > Chapter 2 > Flashcards

Chapter 2 Flashcards

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1
Q

Proton’s relative charge and relative mass

A

+1 and 1

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2
Q

Neutron relative charge and relative mass

A

0 and 1

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3
Q

Electron relative charge and relative mass

A

-1 and 1/1836

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4
Q

Number of protons, neutrons and electrons in ¹⁸O²–

A

8, 10, 10

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5
Q

Number of protons, neutrons and electrons in ⁴¹K

A

19, 22, 19

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6
Q

Number of protons, neutrons and electrons in ⁴¹K+

A

19, 22, 18

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7
Q

Number of protons, neutrons and electrons in ¹⁶O

A

8, 8, 8

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8
Q

Definition of Relative isotopic mass

A

The mass of an atom of an isotope relative to 1/12 th of the mass of an atom of carbon-12

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9
Q

Definition of Relative atomic mass

A

Is the weighted mean mass of an atom of an element relative to 1/12 th of the mass of an atom of carbon-12

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10
Q

Formulae for an ion of Mg

A

Mg2+

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11
Q

Formulae for an ion of Oxygen

A

O2- (Oxide ion)

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12
Q

Formulae for an ion of Iodine

A

I- (Iodide ion)

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13
Q

Formulae for an ion of Rubidium

A

Rb+

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14
Q

Formulae for an ion of Nitrogen

A

N3- (Nitride ion)

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15
Q

Formulae for an ion of nitrate

A

NO↓3-

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16
Q

Formulae for an ion of Carbonate

A

CO↓4²-

17
Q

Formulae for an ion of Sulfate (VI)

A

SO↓4²-

18
Q

Formulae for an ion of Hydroxide

A

OH-

19
Q

Formulae for an ion of Ammonium

A

NH↓4+

20
Q

Formulae for an ion of Zinc

A

Zn²+

21
Q

Formulae for an ion of Silver

A

Ag+

A-level Chemistry (OCRa) PSC (6 decks)

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