chemistry

  • Created by: Abimm
  • Created on: 27-11-16 08:43
What is first ionisation energy?
First ionisation energy is the energy needed to remove an electron from an atom in one mole of gaseous atoms
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What is second ionisation energy/successive?
Second ionisation energy is the energy needed to remove an electron from an ion in one mole of gasous ions with a single positive charge.
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What factors effect ionisation energy?
The distance of the nucleus and the outer shell electrons, the sheiding(in terms of electrons repelling), the amount of protons(nucleur charge)
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how does nucleus charge affect ionisation energy?
The more protons in the nucleus, the more positively charged the nucleus is, increasing the attraction.
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Why does successive ionisation energy increase within each shell?
Because electrons are being remove, therefore creating a more positive species increasing the attraction, as there is now less replusion amongst the remaining electrons.
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How many lone pairs does water have and what bond angle does it have?
2 lone pairs at an angle of 104.5
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What is the most electronegative element?
Fluorine
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What is electronegativity
The ability of an atom to attract the pair of electrons in a covalent bond to itself.
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Card 2

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What is second ionisation energy/successive?

Back

Second ionisation energy is the energy needed to remove an electron from an ion in one mole of gasous ions with a single positive charge.

Card 3

Front

What factors effect ionisation energy?

Back

Preview of the front of card 3

Card 4

Front

how does nucleus charge affect ionisation energy?

Back

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Card 5

Front

Why does successive ionisation energy increase within each shell?

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