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nat 5 chemistry > Elements In The Periodic Table > Flashcards

Elements In The Periodic Table Flashcards

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1
Q

What are the properties of non-metals?(3)

A

Dull
Insulators of heat and electricity (except carbon graphite)
Brittle

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2
Q

What do elements in the same group show ?

A

Similar chemical properties

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3
Q

How reactive are the alkali metals ?

A

Very reactive

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4
Q

How are alkali metals stored?

A

Under oil because the react violently with air and water

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5
Q

How reactive are the halogens ?

A

Very reactive

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6
Q

What do the halogens exist as ?

A

Diatomic molecules

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7
Q

How reactive are the noble gases?

A

Unreactive

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8
Q

What is inside the nucleus ?

A

Protons and neutrons

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9
Q

What are the properties of metals ?(3)

A

Shiny
Malleable
Good conductors of electricity and heat

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10
Q

Where are electrons ?

A

Orbiting in energy levels around the nucleus

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11
Q

What makes the overall charge of an atom neural ?

A

No. Protons = No. Electrons

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12
Q

What is the relative mass of a proton?

A

1 AMU

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13
Q

What is the relative mass of a neutron?

A

1 AMU

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14
Q

What is the relative mass of a electron?

A

0 AMU

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15
Q

What is the relative charge of a proton ?

A

1+

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16
Q

What is the relative charge of a neutron ?

A

0

17
Q

What is the relative charge of an electron ?

A

1-

18
Q

What is the number of protons in an atom known as ?

A

Atomic number

19
Q

What do atoms become when they gain or lose electrons ?

A

Ions

20
Q

What are ions ?

A

Charged particles

21
Q

What do metals become when they lose electrons ?

A

Positively charged ions

22
Q

What do non-metals become when they gain electrons ?

A

Negatively charged ions

23
Q

In general what do ions have ?

A

Full outer shell

24
Q

What are isotopes ?

A

Atoms with the same atomic number but different mass number

25
Q

What is the relative atomic mass of an element ?

A

Average of the mass of isotopes

26
Q

I

A

1

27
Q

II

A

2

28
Q

III

A

3

29
Q

IV

A

4

30
Q

V

A

5

31
Q

VI

A

6

nat 5 chemistry (13 decks)

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