Chapter 2.1 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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matter | anything that has mass and takes up space
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mass | a measure of the amount of matter in an object; is not affected by the gravitational forces on objects
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element | a substance that cannot be separated or broken down into simpler substances by chemical means
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atom | the smallest unit of an element that maintains the chemical properties of that element
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nucleus | in physical science, an atom's central region, which is made up of protons and neutrons
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proton | a subatomic particle that has a positive charge and that is located in the nucleus of an atom
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neutron | a subatomic particle that has no charge and that is located in the nucleus of an atom
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atomic number | the number of protons in the nucleus of an atom
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mass number | the sum of the number of protons and neutrons in the nucleus of an atom
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electron | a subatomic particle that has a negative charge
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orbital | a region in an atom where there is a high probability of finding electrons
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isotope | an atom that has the same number of protons as other atoms of the same element do but that has a different number of neutrons
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compound | a substance made up of atoms of two or more different elements joined by chemical bonds
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chemical bond | the attractive force that holds atoms or ions together
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covalent bond | a bond formed when atoms share one or more pairs of electrons
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molecule | a group of atoms that are held together by chemical forces
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ion | an atom, radical, or molecule that has gained or lost one or more electrons and has a negative or positive charge
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ionic bond | the attractive force between oppositely charged ions, which form when electrons are transferred from one atom to another
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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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