Science Ch 2 Vocab
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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| Chemical symbol | international symbols for each element consisting of one or two letters, such as O for oxygen and Na for sodium
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| Chemical properties | characteristics that describe a substances ability to react chemically with other substances to form new products.
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| Metals | elements that are typically hard, shiny, malleable, ductile and a good conductor of heat and electricity
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| Non-metals | elements that are typically not shiny, malleable, ductile and poor a conductor of heat and electricity. Non - metals are usually gases or brittle solids at room temperature.
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| Periodic table | a chart that organizes elements according to their physical and chemical properties.
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| Atomic number | the number of protons in the nucleus of each a atom of an element.
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| Atomic mass | The mass of an average atom of an element.
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| atomic mass unit | the unit of measurement for atomic mass.
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| Ion charge | an electric charge that forms on an atom when it gains or loses electrons.
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| Ion | Any electrically charged atom.
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| Multiple ion charge | Elements that can form ions in more than one way.
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| Metalloids | elements that share some properties with metals and some properties with non- metals.
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| Period | Each horizontal row in the periodic table.
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| Chemical family | groups of elements arranged in vertical columns in the periodic table that have similar physical and chemical properties.
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| Alkali metals | highly reactive and reactivity increases as you go down the group
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| Alkaline earth metals | less reactive than the alkali metals but will burn in air if heated. They produce bright flames and are used in fireworks.
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| Halogens | non-metals and are highly reactive.
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| Noble gases | the most stable and unreactive elements in the periodic table.
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| Bohr model |
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| Chemical symbol | international symbols for each element consisting of one or two letters, such as O for oxygen and Na for sodium
🗑
|
||||
| Chemical properties | characteristics that describe a substances ability to react chemically with other substances to form new products.
🗑
|
||||
| Metals | elements that are typically hard, shiny, malleable, ductile and a good conductor of heat and electricity
🗑
|
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| Non-metals | elements that are typically not shiny, malleable, ductile and poor a conductor of heat and electricity. Non - metals are usually gases or brittle solids at room temperature.
🗑
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| Periodic table | a chart that organizes elements according to their physical and chemical properties.
🗑
|
||||
| Atomic number | the number of protons in the nucleus of each a atom of an element.
🗑
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| Atomic mass | The mass of an average atom of an element.
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| atomic mass unit | the unit of measurement for atomic mass.
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| Ion charge | an electric charge that forms on an atom when it gains or loses electrons.
🗑
|
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| Ion | Any electrically charged atom.
🗑
|
||||
| Multiple ion charge | Elements that can form ions in more than one way.
🗑
|
||||
| Metalloids | elements that share some properties with metals and some properties with non- metals.
🗑
|
||||
| Period | Each horizontal row in the periodic table.
🗑
|
||||
| Chemical family | groups of elements arranged in vertical columns in the periodic table that have similar physical and chemical properties.
🗑
|
||||
| Alkali metals | highly reactive and reactivity increases as you go down the group
🗑
|
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| Alkaline earth metals | less reactive than the alkali metals but will burn in air if heated. They produce bright flames and are used in fireworks.
🗑
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| Halogens | non-metals and are highly reactive.
🗑
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| Noble gases | the most stable and unreactive elements in the periodic table.
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| Bohr model | a diagram that shows how many electrons are in each shell surrounding the nucleus.
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| Electron shells | the regions surrounding the nucleus of an atom.
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| Valence electrons | The electrons in the outermost shell.
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| Valence shell | the shell that contains the outermost electrons.
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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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