Trends
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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Atomic Radii down a column ___________ | Increases
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Give two reasons for change in atomic radii down columns | New energy shell & Screening effect of inner electrons
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Define atomic radius | Half the distance between the nuclei two covalently bonded atoms of the same element
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Atomic radii across a period ___________ | Decreases
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Give two reasons for change in atomic radii across a period | Increase in effective nuclear charge & No increase in screening effect
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Define first ionisation energy | Energy required to remove losest electron from its bond with an atom in its ground state
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Values for first ionisation energy __________ down a column | Decrease
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Give two reasons for the change in first ionisation energy down a column | Increasing atomic radii & Screening effect of inner electrons
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Values for first ionisation energy __________ across a period | Increase
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Give two reasons for the change in first ionisation energy across a period | Increasing effective nuclear charge & Decrease in atomic radii
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Define electronegativity | Electronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons
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Values for electronegativity __________ across a period | Increase
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Give two reasons for the change in electronegativity values across a period | Increasing effective nuclear charge & Decrease in atomic radii
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Values for electronegativity __________ down a column | Decrease
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Give two reasons for the change in electronegativity values down a column | Increasing atomic radii & Screening effect of inner electrons
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To hide a column, click on the column name.
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You may also shuffle the rows of the table by clicking on the "Shuffle" button.
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Created by:
JackEatonK98
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