Chemistry C2 1.5 Metals.

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How are the atoms in metals arranged?
They are closely packed together and arranged in regular layers. Electrons in the highest energy level are delocalised. Strong electrostatic forces between these electrons and the positively charged metal ion hold the metal together.
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What is constant about the atoms in a metallic element?
They are all the same size, they form giant structures in which layers of atoms are arranged in regular patterns, you can make models of metal structures by putting lots of small same-sized spheres like marbles together.
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When metal atoms pack together the electrons in the highest energy level (outer shell) delocalise, what does this mean?
They can move freely between atoms.
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What does delocalised electrons of the highest energy level produce?
A lattice of positive ions in a 'sea' of moving electrons.
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What do the delocalised electrons do?
Strongly attract the positive ions and hold the giant structure together.
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What forces hold metal atoms in place in their giant structures?
Electrostatic forces between positive (metal) ions and delocalised electrons.
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Card 2

Front

What is constant about the atoms in a metallic element?

Back

They are all the same size, they form giant structures in which layers of atoms are arranged in regular patterns, you can make models of metal structures by putting lots of small same-sized spheres like marbles together.

Card 3

Front

When metal atoms pack together the electrons in the highest energy level (outer shell) delocalise, what does this mean?

Back

Preview of the front of card 3

Card 4

Front

What does delocalised electrons of the highest energy level produce?

Back

Preview of the front of card 4

Card 5

Front

What do the delocalised electrons do?

Back

Preview of the front of card 5
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