EL 8 Spectacular Metals

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  • Created by: LBCW0502
  • Created on: 21-12-15 11:45
What is the trend down and group and across a period for Groups 1 and 2?
Elements become more metallic down a group and elements become less metallic across a period
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What are the properties of s-block elements?
Soft, weak metals with low melting points. Too reactive with water and oxygen
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What is the definition of the first ionisation enthalpy?
The energy needed to remove on electron from every atom in one mole of isolated gaseous atoms of the element - a mole of gaseous ions with one positive charge are formed
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What is the general trend in ionisation enthalpy across period 3?
The first ionisation enthalpy increases
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What are at the troughs and peaks of an ionisation enthalpy graph?
Group 1 elements are at the troughs and Group 0 elements are at the peaks
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What is formed when a Group 2 element reacts with oxygen?
A metal oxide
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What is formed when a Group 2 element reacts with water?
A metal hydroxide and hydrogen
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What is formed when a Group 2 carbonate is decomposed?
A metal oxide and carbon dioxide
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What is the trend in thermal stability down Group 2?
The thermal stability increases
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What is the trend in reactivity with water down Group 2?
Reactivity increases
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What is the trend in pH down Group 2?
pH increases
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What is the trend in the solubility of hydroxides down Group 2?
Solubility of hydroxides increases (also applies to nitrate ions: 1-)
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What is the trend in the solubility of carbonates down Group 2?
Solubility of carbonates decreases (also applies to sulfate ions: 2-)
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Other cards in this set

Card 2

Front

What are the properties of s-block elements?

Back

Soft, weak metals with low melting points. Too reactive with water and oxygen

Card 3

Front

What is the definition of the first ionisation enthalpy?

Back

Preview of the front of card 3

Card 4

Front

What is the general trend in ionisation enthalpy across period 3?

Back

Preview of the front of card 4

Card 5

Front

What are at the troughs and peaks of an ionisation enthalpy graph?

Back

Preview of the front of card 5
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