Compounds and Atoms

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What two subatomic particles are in the nucleus of an atom?
Protons and Neutrons.
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What charge do protons have?
Positive.
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What charge do neutrons have?
No charge, they are neutral.
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What charge do electrons have?
Negative.
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Fluorine has 9 electrons, how many protons does it have?
9 protons aswell.
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Fluorine has 9 electrons how many neutrons does it have?
10, because the mass number is 19. (atomic number- mass number =no. of neutrons)
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What charge to atoms have?
No charge, they are neutral.
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What happens when electrons are added to an atom?
It becomes a negative ion.
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What happens when electrons are removed from an atom?
It become a positive ion.
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How many types of atom do elements contain?
One.
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Why do Lithium and Rubidium react in similar ways?
Because they both have one electron in their outer shells. They are both in the same group also.
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Why are noble gases not reactive?
Because they have a complete outer shell (8), which means they are stable.
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Why is argon used in filament bulbs?
Because argon has a full outer shell and so won't react with the hot tungsten in the filament.
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What happens when different elements react with each other?
They form chemical bonds known as compounds.
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what are ionic compounds made up of?
a metal and a non-metal.
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In ionic compounds do metals loose or gain electrons?
They loose electrons forming positive ions.
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In ionic compounds do non-metals loose or gain electrons?
They gain electrons forming negative ions.
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What are ions?
When atoms gain or loose electrons.
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When a metalled a non-metal bond ionically do they share or give electrons?
They give electrons.
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Why are ionic bonds attracted to each other?
Because of the negative and positive ions.
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What is ionic bonding?
When negative and positive ions are attracted to each other. They give electrons away in this process.
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What is covalent bonding?
A covalent bond is a chemical bond that involves the sharing of electron pairs between atoms.
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what is the electronic arrangement of the first 3 shells?
2,8,8
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Other cards in this set

Card 2

Front

What charge do protons have?

Back

Positive.

Card 3

Front

What charge do neutrons have?

Back

Preview of the front of card 3

Card 4

Front

What charge do electrons have?

Back

Preview of the front of card 4

Card 5

Front

Fluorine has 9 electrons, how many protons does it have?

Back

Preview of the front of card 5
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