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Chemistry Yr 10 > Atomic Structure > Flashcards

Atomic Structure Flashcards

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1
Q

What are atoms?

A

The smallest part of a substance

An element

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2
Q

How many types of atom are there?

A

There are about 100 different types of atoms

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3
Q

Mass of protons, neutrons and electrons?

A

Proton 1
Neutron 1
Electron 0

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4
Q

Charge of protons, neutrons and electrons?

A

Proton +1
Neutron 0
Electron -1

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5
Q

Location of protons, neutrons and electrons?

A

Proton Nucleus
Neutron Nucleus
Electron Shell

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6
Q 
Example, 
How many protons, neutrons and electrons in:
39
K
19
A

Protons 19
Electrons 19
Neutrons 20

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7
Q

First 20 elements:

A 
Hydrogen - H
Helium - He
Lithium - Li
Beryllium - Be
Boron - B
Carbon - C
Nitrogen - N
Oxygen - O
Fluorine - F
Neon - Ne
Sodium - Na
Magnesium - Mg
Aluminium - Al
Silicon - Si
Phosphorus - P
Sulfur - S
Chlorine - Cl
Argon - Ar
Potassium - K
Calcium - Ca
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8
Q

What the most important subatomic particles?

A

Electrons

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9
Q

How are electrons arranged?

A

In shells

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10
Q

How many do the first four shells hold up to?

A

1st shell - 2 electrons
2nd shell - 8 electrons
3rd shell - 8 electrons
4th shell - 18 electrons

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11
Q 
Example, 
How many shells does sulfur have?
32
S
16
A

3 shells

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12
Q 
Example, 
How many protons, neutrons and electrons in:
27
Al
13
A

13 protons
13 electrons
14 neutrons

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13
Q

Periodic Table:

Why are they in grouped in columns? (Group)

A

Number of electrons in outer shell

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14
Q

Periodic Table:

Why are they grouped in rows? (Period)

A

Number of shells with electrons in

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15
Q

When atoms meet, what is involved in the chemical reactions?

A

The outer shell

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16
Q

What do elements in the same group do?

A

They react in similar ways and have similar properties

17
Q

What are Group 1 Alkali Metals’ properties?

A 
Easy to cut
React with water (produce an alkaline)
React with oxygen
Shiny when cut (coated in metal oxide)
Float on water (density less than 1g/cm3
18
Q

What are trends in Group 1 Alkali Metals?

A

Become:
More reactive
Softer/easier to cut
Melting point decreases

19
Q

What are Group 0/8 the Noble Gasses’ properties?

A

Very unreactive

Complete outer shell

20
Q

What are Group 0/8 the Noble Gasses’ uses? (3)

A

1) Lights - Neon
2) Filament lightbulbs - Argon filled to prevent reaction with oxygen
3) Welding - prevent reaction of steel with air

Chemistry Yr 10 (1 decks)

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