1.1-1.3

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  • Created by: ambh0yle
  • Created on: 17-02-14 15:42
what do atoms contain?
protons, neutrons and electrons
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what do atoms have in there nucleus?
protons and neutrons and around which there are electrons.
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in an atom are the number of electrons equal to the number of protons in the nucleus?
yes
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do atoms of different elements have different numbers of protons?
yes
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how do you know the number of protons in an element?
it is its atomic number
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The sum of protons and neutrons in an atom is called its what?
mass number
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each electron in an atom is at a particular what?
energy level
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the elements in group 0 of the periodic table are called what?
the noble gases
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are noble gases unreactive?
yes, because their atoms have stable arrangements of electrons.
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what is limestone used for?
it is an essential building material.
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what is limestone made from?
mainly calcium carbonate (CaCO3)
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how can calcium carbonate be decomposed?
by heating(thermal decomposition), to make calcium oxide and carbon dioxide
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how do The carbonates of magnesium, copper, zinc, calcium and sodium decompose?
by heating in a similar way to calcium carbonate.
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Calcium oxide reacts with water to produce what?
calcium hydroxide
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what can calcium hydroxide be used for?
the neutralisation of acids.
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what is the test to find carbon dioxide?
A solution of calcium hydroxide in water (limewater) reacts with carbon dioxide to produce calcium carbonate. Carbon dioxide turns limewater cloudy.
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when carbon dioxides react with acids, what do they produce?
carbon dioxide, a salt and water
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what is limestone damaged by?
acid rain.
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Other cards in this set

Card 2

Front

what do atoms have in there nucleus?

Back

protons and neutrons and around which there are electrons.

Card 3

Front

in an atom are the number of electrons equal to the number of protons in the nucleus?

Back

Preview of the front of card 3

Card 4

Front

do atoms of different elements have different numbers of protons?

Back

Preview of the front of card 4

Card 5

Front

how do you know the number of protons in an element?

Back

Preview of the front of card 5
View more cards

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