4.2-4.4/ 2013-14
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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| Who created the first periodic table? | Mendeleev
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| How did Mendeleev arrange the elements? | In order of increasing atomic mass
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| How was the periodic table re-arranged later? | in order of increasing atomic number
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| Which group has the most elements? | metals
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| Rows are called? | Periods
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| Columns are called? | groups or families
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| What is the sun mostly made of? | Hydrogen
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| Nuclear fusion? | Combining 2 nuclei
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| What are physical characteristics of metals? | shiny, malleable (hammered into a thin sheet),
ductile (pulled into a long wire), can conduct electricity, high melting and boiling points
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| Chemical properties of metals? | reactive (can easily combine with another element); corrosive
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| Metals react by ___________ electrons | losing
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| Most reactive metal? | francium
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| How does the reactivity of metals change as you go from left to right on the periodic table? | It decreases
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| What kind of metals are located in group 1? | alkali metals
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| What kind of metals are located in group 2? | alkaline earth metals
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| how do alkaline earth metals react with other elements? | lose 2 electrons
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| What kind of metals are found in groups 3-12? | transition metals
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| Where are metalloids located? | along both sides of the zig zag line
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| Metalloids have properties of both ___________ and _____________________ | metals and non-metals
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| Where are non-metals? | on the right side of the periodic table
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| What is the most useful property of a metalloid? | Its ability to conduct electricity
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| What is the most common metalloid? | silicon
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| What is a semiconductor? | conducts electricity under certain circumstances but not under all circumstances
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| What are the characteristics of non-metals? | the opposite of metals
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| What is the non-metal that is the most reactive element known? | fluorine
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| Which non-metal is a liquid at room temperature? | bromine (Br)
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| Where are halogens located? | group 17
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| What does halogen mean? | salt forming
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| How do halogens react with other elements? | they gain or share one electron
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| Where are noble gases found? | in group 18
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| Why are noble gases unreactive? | They have a full outer shell (8 electrons are in that outer shell).
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| Why is hydrogen in group 1 even though it is not a metal? | It has one valence electron.
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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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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:
mtnbrook
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