ESL
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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| Atom | the smallest particle of matter that has the properties of one element
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| Electron | very small negatively charged particle found inside an atom
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| Proton | positively charged particle found inside the atom's nucleus; has same mass as a neutron
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| Neutron | particle with no charge found inside the atom's nucleus; has same mass as a proton
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| Ion | an atom that has lost or gained one or more electrons; is charged
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| Isotope | atoms with the same number of protons but different number of neutrons
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| Valence | outermost shell electrons of an atom
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| cation | positively charged ion
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| anion | negatively charged ion
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| compound | a pure substance made up of two or more different elements in a fixed ratio
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| molecule | a cluster of atoms that stick together as one particle
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| pure substance |
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| mixture |
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| homogeneous mixture |
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| heterogeneous mixture |
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| Particle Theory of Matter |
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| Chemical Symbol | a single capital letter with or without a lowercase letter; represents one element
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| Atomic number | number of protons in the atom's nucleus
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| Atomic mass | number of protons and neutrons in the atom's nucleus
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| Orbital shell = Energy level | where electrons are found inside an atom
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| Nucleus | small dense center of an atom; where protons and neutrons are found
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| Group (on Periodic table of Elements) | a vertical column on periodic table of elements; a family of related elements
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| Period (on Periodic table of Elements) | a horizontal row on periodic table of elements
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| Element | a type of pure substance that cannot be broken down chemically
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| Chemical change | a process that changes the particles of matter by rearranging their atoms
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| Physical change | a process that changes the physical properties of matter while keeping the particles the same
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| Chemical formula | shows the number of atoms and types of elements in a compound
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| Density | mass per volume
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| neutral | no charge; equal number of electrons and protons
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| precipitate | a new solid formed inside a solution of two liquids
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To hide a column, click on the column name.
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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.
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Created by:
teresa.yang
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