Term
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Definition
| the smallest particles of an element that still retains the properties of that element |
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Term
| Deomocritus;400bc; did what? |
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Definition
| coined the term "atomos", meaning indivisible[image] |
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Term
Dalton; 1808; discovered...? |
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Definition
| "Atomic Theory"[image][image] |
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Term
Thomas; 1897;discovered...? |
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Definition
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Term
| Rutherford;1908; discovered...? |
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Definition
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| Moseley;1911;discovered...? |
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Definition
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Schrodinger;1926;disovered...? |
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Definition
orbitals/electrons are in orbitals [image] |
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Term
| what are protons charge, location, and mass? |
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Definition
| PROTONS have a positive charge, are located in the nucleus, and have a mass of 1. |
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Term
| what are a neutrons charge, location, and mass? |
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Definition
| a NEUTRONS charge is neutral, the location is in the nucleus, and has a mass of 1. |
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Term
| what is an electrons charge, location, and mass? |
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Definition
| the charge of an ELECTRON is negative, their location is in the electron cloud, and their mass is 1/1850. |
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Term
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Definition
| energy levels which have sublevels, which have orbitals. |
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Term
| How many energy levels can their be in an atom? |
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Definition
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Term
| 18 groups; the verticle columns |
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Definition
| are also called families. teh elements have very similar properties. tey have teh same number of valence electrons. |
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Term
| how many sublevels are available in the first energy level and how many electrons can each contain? |
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Definition
there is an s sublevel, with 1 orbital, and can hold 2 electrons. |
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Term
what sublevels are in the 2nd energy level, how many orbitals, and how many electrons? |
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Definition
| there is a s and p sublevel, there are 1 and 3 orbitals, and in 2s there are 2 electrons, while in the 2p, there are 6 electrons. |
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Term
| how many electrons can be in the third energy level? |
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Definition
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Term
how many electrons can be in the 4th energy level? |
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Definition
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Term
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Definition
| atoms of teh same element that have different numbers of neutrons. |
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Term
| what is the number in the top corner of each element on the periodic table? |
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Definition
| the atomic number, which is the number of protons an element has. |
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Term
at the bottom of the elements on teh periodic table is the...? |
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Definition
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Term
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Definition
| average mass of teh natural isotopes of an element. |
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Term
| 7 periods; horizontal rows. |
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Definition
| elements are very different, teh only thing in common is the NUMBER OF ENERGY LEVELS. |
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Term
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Definition
| a russian chemisht who was the father of teh Periodic Table of Elements. |
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Term
| Mendeleev arranged elements by... |
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Definition
| both atomic mass and by properteis. he left spaces for undiscovered elements and predicted their properties. |
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