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Chemistry > Unit 1 i) Atoms And The Mole > Flashcards

Unit 1 i) Atoms And The Mole Flashcards

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1
Q

What are the alkali metals?

A

A family of very reactive metals

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2
Q

What is the atomic number and symbol of the following elements?
Hydrogen, Carbon, Magnesium

A

Hydrogen 1 H
Carbon 6 C
Magnesium 12 Mg

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3
Q

Are most elements natural or man made?

A

Natural. Elements after Uranium92 are man made

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4
Q

What are the two liquids at room temperature?

A

Mercury

Bromine

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5
Q

What are the 11 gases at room temperature?

A 
Hydrogen
Helium
Nitrogen
Oxygen
Fluorine
Neon
Chlorine
Argon
Krypton
Xenon
Radon
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6
Q

What physical state are most elements at room temperature?

A

Solid

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7
Q

Are metals conductors or non-conductors of electricity?

A

Conductors

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8
Q

What are elements to the left of the line on the periodic table?

A

Metals

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9
Q

What are elements to the right of the line in the periodic table?

A

Non-Metals

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10
Q

What are the properties of metals?

A
  • Shiny
  • Malleable
  • Good conductors of heat and electricity
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11
Q

Properties of non metals?

A
  • Dull
  • Insulators of heat and electricty
  • Brittle
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12
Q

How are the element arranged?

A

In order of atomic number

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13
Q

Where are the alkali metals stored and why?

A

Under oil because they react with air

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14
Q

What are the halogens?

A

A family of very reactive non-metals that exist as diatomic molecules eg F2 Cl2

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15
Q

What are the noble gases?

A

A family of very unreactive non metals

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16
Q

What is the charge of a neutron?

A

Neutral - no charge

17
Q

What is the charge of a proton?

A

Positive - 1+

18
Q

What is the charge of an electron?

A

Negative 1-

19
Q

What is the mass of a proton?

A

1

20
Q

What is the mass of a neutron?

A

1

21
Q

What is the mass of an electron?

A

0

22
Q

How do you find the mass of an atom?

A

Mass of protons + mass of neutrons

23
Q

The number of protons is equal to ?

A

The number of electrons

24
Q

How are electrons arranged?

A

In shells around the nucleus

25
Q

What is the maximum number of electrons the first shell can have?

A

2

26
Q

What is the maximum number of electrons all other shells can have?

A

8

27
Q

What is an isotope?

A

Atoms of the same element with the same atomic number but a different mass number

Chemistry (10 decks)

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