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Chapter 2: Cemistry
Biology: Chemistry
Question | Answer |
---|---|
Chemistry? | Changes that occur in the structure of matter |
Matter? | Anything that occupies space and has mass |
Mass? | Quantity of matter/Constant volume |
Weight? | Influenced by gravity |
Energy? | Remains constant in the universe, only changes it shape and form, has three states of matter, is the ability to do work. |
Solid? | Definite shape, volume and a low state of energy. |
Liquid? | Fixed volume, the shape of the container it is in, and a medium state of energy. |
Gas? | Fills volume of container it is in, no shape,and a high state of energy. |
Elements? | Purest kind of matter and cannot be broken down further. |
Element organized into? | Periodic table |
Elements grouped according to? | Common characteristics. |
Elements on table contain information? | Atomic #, atomic mass, and name/symbol. |
Symbol? | Always capitalized if one letter, if two, first one is capitalized and second is lower case. |
Atomic number? | Whole number, number of protons and number of electrons. |
Atomic mass? | Number with decimal, number of neutrons and protons in the nucleus. |
Atom? | Simplest particle of an element. |
Protons? | Positive |
Neutrons? | No charge |
Electrons? | Negative |
Isotope? | Form of an element, different number of neutrons. |
Atomic # equation? | Atomic #= proton # and electron # |
Atomic mass equation? | # protons + # neutrons |
Neutron equation? | Atomic mass - atomic # |
Electron levels? | 2, 8, 8, 18, 18, 32, 32 |