Atomic Theory And Bonding Flashcards

1
Q

Where are the elections in an atom

A

The energy levels (shells)

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2
Q

How many elections can the first 3 shells hold

A

1=2
2=8
3=8

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3
Q

The name for the number of protons in an element

A

Atomic number

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4
Q

Qualities of group 1

A

All solids
All has a density less than water (floats)
Reactivity increases going down the group
Boiling point decrease going down the group

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5
Q

Qualities of group 7

A

All diatomic elements
Reactivity decreases going down the group
All coloured glasses and liquids

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6
Q

Qualities of group 0

A

All colourless gasses
Inert
Often used in lighting

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7
Q

What group do most catalysts come from

A

The transition metals

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8
Q

What is the mass number

A

No. Protons +No. neutrons

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9
Q

What is RAM

A

Relative atomic mass, it takes into account different isotopes of atoms and makes an average mass

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10
Q

What is an isotope

A

Atoms of a given element which have a different number of neutrons

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11
Q

How do you calculate RAM

A

((% of isotope of element)x mass no.)+((%of isotope of element)x mass no.)

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12
Q

Metal ions and oxidation

A

They lose elections to give non-metals full outer shells this forms positive metal ions

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13
Q

Non-metal ions and reduction

A

They gain elections from metals to achieve full outer shells and a negative non-metal ion

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14
Q

What is ionic bond

A

Electrostatic force of attraction between two oppositely charges ions

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15
Q

Valency

A

The number of bonds that an element will make to achieve a full outer shell

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16
Q

Properties of ionic lattice structures

A

Doesn’t melt under benson burner
Doesn’t conduct as a solid
Soluble in water
Conducts as a liquid

17
Q

Properties of covenant Bonds

A

Only non-metals
Electrons are shared
Two or more

18
Q

7 diatomic elements

A

Hydrogen, oxygen, nitrogen, Florine, chlorine, Bromine and iodine

19
Q

Properties of covenant molecular bonds

A

Does melt
Doesn’t conduct
Doesn’t dissolve

20
Q

Properties of covalent networks

A

Doesn’t melt with bunson burner
Doesn’t conduct
Doesn’t dissolve