Tuesday, April 13, 2021

Chemistry Definitions

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1. Periodic table


a. Table that shows all the elements, and many of their properties.


b. Table that shows all the elements, and many of their properties.


c.


Cheap essay writers help on Chemistry Definitions essays


. Elements


a. basic unit of matter any substance that cannot be broken down into a simpler one by a chemical reaction. Elements consist of atoms with the same number of protons in their nuclei, and occur naturally on Earth.


b. One of natural substances that cannot be broken down any simpler.


c.


. Molicules


a. the smallest physical unit of a substance that can exist independently, consisting of one or more atoms held together by chemical forces


b. smallest part of a substance, many atoms held together.


c.


4. Physical property


a. a property of an object that can distinguish it form others.


b. a property of an object that can distinguish it form others.


c.


5. Chemical property


a. a property of a chemical that can distinguish it from others.


b. a property of a chemical that can distinguish it from others.


c.


6. Atomic number


a. the number that atoms are organized by in the periodic table of elements, and it is also the number of protons in an atom.


b. the number that atoms are organized by in the periodic table of elements, and it is also the number of protons in an atom.


c.


7. Atomic Mass


a. the mass of an atom


b. the mass of an atom


c.


8. Valance electrons


a. the chemical combining power of atoms or groups measured by the number of electrons the atom or group will receive, give up, or share in forming a compound


b. the combined power of two atoms.


c.


. Bohr diagram


a. Model to diagram an atoms structure.


b. Model to diagram an atoms structure.


c.


10. Lewis Structure


a. The Lewis structure of a covalent compound or polyatomic ion shows how the valence electrons are arranged among the atoms in the molecule to show the connectivity of the atoms.


b. Model that's shows valence electrons


c.


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