Module 2
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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What is the first ionisation energy? | The energy required to remove one electron from each atom in one mole of gaseous atoms to form one mole of gaseous 1+ ions.
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What is electron shielding? | The repulsion between electrons in different inner shells. Shielding reduces the attractive force between the electrons and the nucleus.
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How many electrons are in an S orbital? | 2
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What is an ionic bond? | The electrostatic attraction between oppositely charged ions.
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Does a group in the periodic table go down or across the periodic table? | Down.
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What is a covalent bond? | A shared pair of electrons.
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What is a lone pair? | A pair of outer-shell electrons that is not involved in chemical bonding.
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What is a dative covalent bond? | A shared pair of electrons which are provided by one of the bonding atoms.
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What is the bond angle in a trigonal planar? | 120
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What is electronegativity? | The measure of the attraction of a bonded atom for the pair of electrons in a covalent bond.
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What is a permanent dipole? | A small charge difference across a bond that results from a difference in the electronegativities of the bonded atoms.
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What is intermolecular force? | An attractive force between neighbouring molecules.
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What are van der Waals' forces? | Attractive forces between induced dipoles in neighbouring molecules.
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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.
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.
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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