matts science 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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| Mass # | The sum of the number of neutrons and protons in an atomic nucleus
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| Valence electrons | An electron in an outer shell of an atom that can participate in forming chemical bonds with other atoms
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| isotopes | one of two or more atoms with the same number of protons in the nucleus but a different number of neutrons
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| Lanthanides and actinides | bottom of the peridic table actinides are below Lanthanides.
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| 1st energy level, how many electrons can it hold? | 2
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| second energy level, how many electrons can it hold? | 8
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| What is the importance of the zigzag line? | difference between the metals and non metals
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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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Created by:
mktmac
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