Atomic structure and the periodic table

What is an isotope?
The number of neutrons in an element is not fixed meaning some atoms of an element have different mass numbers
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What are isotopes that have more neutrons than protons more likely to be?
Unstable, radioactive and likely to decay
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What are all the elements of group 1?
Alkali metals
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What does it mean to be an alkali metal?
When they react with water they cause alkaline solutions
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What happens to alkali metals as you go down the group?
They get more reactive
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What do group 1 form when they react with oxygen?
Oxides
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What do group 1 form when they react with water?
Hydroxides and hydrogen gas
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What do group 1 form when they react with chlorine and bromine?
Chlorides and bromides
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What colour flame does lithium have when burnt with oxygen?
Crimson red
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What colour flame does sodium have when burnt with oxygen?
Orange-Yellow
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What colour doe potassium have when burnt with oxygen?
Lilac
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Other cards in this set

Card 2

Front

What are isotopes that have more neutrons than protons more likely to be?

Back

Unstable, radioactive and likely to decay

Card 3

Front

What are all the elements of group 1?

Back

Preview of the front of card 3

Card 4

Front

What does it mean to be an alkali metal?

Back

Preview of the front of card 4

Card 5

Front

What happens to alkali metals as you go down the group?

Back

Preview of the front of card 5
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