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22 Cards in this Set
- Front
- Back
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Properties of solids |
Have a fixed shape and cannot flow as particles are in a fixed position Cannot be compressed as the particles are already so close together |
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Properties of liquids |
Flow and take shape of their container Cannot be compressed |
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Properties of gases |
Flow and completely fill their container Can be compressed as particles are far apart and have space to move into |
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What does the amount of energy needed to change state from solid to liquid depend on |
The strength of the forces between the particles of a substance |
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What happens when something condenses or freezes |
Energy is transferred from a substance to the surroundings when a substance condenses or freezes as the forces of attraction between the particles get stronger |
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What is an ion |
An electrically charged particle formed when an atom gains or loses an electron |
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How to draw ionic bonding |
With a dot and cross diagram |
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Ionic bonding |
When a metal reacts with a non-metal |
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Group 1 in ionic bonding |
Metals lose 1 electron forming a 1+ ion |
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Group 7 in ionic bonding |
Non metals gain 1 electron forming a 1- ion |
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Group 2 metals in ionic bonding |
Metals Lose 2 electrons |
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Group 6 in ionic bonding |
Non-metals gain 2 electrons |
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Structure of an ionic compound |
Giant structure of ions which have a regular, repeating arrangement called an ionic lattic |
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How are ionic lattices formed |
the ions attract each other and form a regular pattern with oppositely charged ions next to each other |
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What is an ionic lattice held together by |
Strong electrostatic forces of attraction |
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Properties of ionic compounds |
High melting point High boiling point |
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What does the strength of an ionic bond depend on |
The charge on the ions, higher charge=stronger forces, so more energy is needed to overcome them |
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An ionic compound can conduct electricity when |
It has melted to form a liquid or it has dissolved in water to form an aqueous solution |
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How are ionic bonds formed |
The oppositely charged ions are strongly attracted to each other |
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Why Ionic compounds conduct electricity when molten to form a liquid or dissolved in water to form an aqueous solution. |
because both processes make their ions free to move from place to place. |
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Name of the ionic compound ends in -ide if… |
It contains just 2 elements |
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Name of the ionic compound ends in -ate if… |
it contains three or more elements, one of which is oxygen |
