Science Quiz 3
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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| Law of Definite Propotions | A chemicl conmpoun is always made up of the same elements in the same proportions.
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| Electrons | A negatively charged particle with an extremely small mass. Their speed and distance are jut right to keep them from being sucked into the nucleus.
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| Nucleus | The center of an atom with contains protons and neutrons.
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| Energy Levels | A region in an atom that contains electrons of a certain energy.
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| Neutrons | A neutral particle in the nucleas of an atom, with approximately the same mass as a proton. Unstable particle that explodes in 17 minutes when removed from the nucleus, but is stable in the nulceus.
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| Protons | A positively charged particle in the nucleus of an atom; 1836 times heavier than an electron. They stick together when they should be repelling each other with great force.
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| Planetary Model | Created by Bohr. Electrons exist in specific engery levels. Represents the location of each electron as a general and indefinite,
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| Quantum Model | Represents the location of electrons being present in cloud-like orbitals
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| Orbitals | Regions of most probable location electrons.
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| Atomic Mass | The total masses of the particles in an atom.
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| Atomic Mass Unit (amu) | A unit used to measure the mass of an atom; one-twelth of the mass of a carbon012 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 protons and neutrons in the nucleus of an atom; also known as atomic mass.
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| Isotopes | Different forms of the same element that have different numbers of neutrons
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| Isotopic Notation | Shows both the atomic number and the mass number of the atom i.e.(13C4, 14C6)
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| Atoms | Never wear out. Function flawlessly for thousands of years. Are continuously recycled.
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| Democritus | Theory-All matter is made up of atoms.
Key Terms- Atom=indivisble(undividable)
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| Bohr | Theory- Planetary Model
Key Terms- Electrons exist in specific energy levels
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| Various Scientists | Theory-Quantum Model
Key Terms-Energy levels=Electron Cloud. Position of electron is uncertain.
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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:
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