Chem
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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| Dmitri Mendeleev | show 🗑
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| show | undiscovered elements
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| Henry Moseley | show 🗑
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| show | when they are arranged in order of increasing atomic number
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| show | groups
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| show | an energy level
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| What are valence electrons? | show 🗑
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| show | periods
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| show | Same valence configuration, same valence electrons, and similar chemical properties.
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| show | Same number of occupied energy levels- principle energy levels (PEL).
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| How many elements are in a period in which only the s and p sub-levels are filled? | show 🗑
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| Identify the sub-levels in a period that contains 32 elements | show 🗑
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| show | 7
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| For groups 13 through 18 the number of valence electrons is equal to | show 🗑
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| show | S
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| show | metals, nonmetals, and metalloids
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| Lose electrons | show 🗑
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| Gain electrons | show 🗑
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| show | nonmetals
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| Good electrical conductors | show 🗑
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| show | metals
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| Are not conductive | show 🗑
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| The most reactive group of nonmetals | show 🗑
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| This group is unreactive, and only found in pure form in nature | show 🗑
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| show | group 2, alkaline earth metals
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| show | groups 3-12, transition metals
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| show | groups 1, alkali metals
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| show | actinides
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| show | metalloids
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| Explain why atomic radius decreases going across the period left to right on the periodic table. | show 🗑
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| show | the number of occupied energy levels increases
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| show | arsenic
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| Find phosphorus, sulfur, and chlorine on the periodic table. Which of these is the largest atom? | show 🗑
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| Which of the following atoms is smallest; nitrogen, oxygen, or fluorine? | show 🗑
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| Write a definition for ionization energy | show 🗑
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| Which atom would it take more energy to remove its first electron, sodium or aluminum? | show 🗑
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| show | increases
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| show | decreases
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| show | phosphorous
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| show | Once the 1st two electrons are removed, mg will be left with a full octet for its outer energy level.
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| show | sulfur
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| show | Cl, Zn, K
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| show | Electronegativity decreases moving down a group on the periodic table.
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| What element is the most electronegative? | show 🗑
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| show | low
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| show | Li + ion
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| show | Reactivity increases going down the group
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| show | reactivity decreases going down the group
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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:
sadiesamson