VESPR Shapes
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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| AX2 | linear
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| AX3 | trigonal planar
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| AX4 | tetrahedral
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| AX5 | trigonal bipyramidal
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| AX6 | octahedral
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| A stands for | central atom
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| X stands for | surrounding atom w bond
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| E stands for | lone pairs
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| Higher bond orders... | -have higher electron densities,
-causing greater electron repulsion,
-requiring more space.
-(1 is <120 on trig planar)
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| Lone pairs... | -are less constrained
-so they take up even more space
-(1 is 95 on trig planar)
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| Linear ideal angle | 180
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| Trigonal Planar ideal angle | 120
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| Bent Trigonal Planar angle | <120
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| Tetrahedral ideal angle | 109.5
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| Trigonal Pyramidal | ~107.3
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| Bent Tetrahedral | ~104.5
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| How many bonds does hydrogen have? | Always one
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| How many bonds do halogens have? | Normally one
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| How many bonds does oxygen have? | Almost always 2, sometimes 1.
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| How many bonds does nitrogen have? | Normally 3, sometimes 4.
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| How many bonds does carbon have? | Normally 4, besides CO.
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
matt46
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