Unit 4 Vocabulary for Science
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| Atomic Mass | Average mass of one atom of an elements
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| Periodic Table | A Chart where all elements are organized into periods and group according to thier to thier properties
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| Chemical Symbol | One or two letter code that stands for an element; many sumbols are abbrievation of the elements name, which may be latin, english, or greek in origin
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| Period | A row of elements in the periodic table arranged by atomic number
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| Group | Column of elements in the periodic table, in which elements have certain properties in common; also called chemical family
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| Matter | The material that all objects and substances are made of; anything that has a mass and takes up space
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| Element | Substances that are the building block or all matter; an element is made up of one kind of atom
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| Compound | Matter made of two or elements; the elements in a compound are chemically bonded, cannot be seperated by physical means, and a compound has properties that are different from the elements that make it up
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| Atom | Smallest particle into which an element can be divided and still have the properties of that element
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| Electron | Negatively charged particle found outside the nucleas of a proton
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| Nucleas | Center of an atom made up of protons and neutrons
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| Proton | Positively charged particle in the nucleas of an atom
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| Neutron | In a atom, particle with a neutral charge; located in the nucleas
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| Energy Level | The amount of energyh carried by an electron in an atom; determines the electron's average distance from nucleas
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| Isotype | Atoms of the same element with different numbers of neutrons in hte nucleas, and thus different atomic masses for example, carbon-12
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| Mass Number | The sum of protons and neutrons in the nucleas of an atom
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| Atomic Number | The number of protons in the nucleas in the nucleas of a atom
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| Metal | A class of elements characterized by physical properties: shiniess, malleability, ductility, conductivity
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| Malleble | A term used to describe material that can be pounded into shapes
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| Ductile | Term to describe a material that can be strecthed into a long object
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| Conductivity | The ability of a n object to transfer heat to another object
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| Reactivity | The ease or speed with an element comines or reacts, with other elements or compound
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| Corrosino | The gradual wearing away of metal element element due to chemical reaction
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| Alkai Metal | An element in group 1 of the periodic table
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| Alkaline Earth Metal | An element in group 2 of the periodic table
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| Transition Metal | One of the element in group 3 through 12 of the periodic table
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| Alloy | A mixture of two or more elements, one of which is a metal
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| Non-Metal | An element that lacks most of the properties of a metal
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| Diatomic Molecule | A molecule consiting of two atoms
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| Halogen | An element foung in group 17 of the periodic table
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| Metaloid | An element that has some characteristics of both metal and non-metals.
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| Noble Gas | An element foung in group 18 of the periodic table
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| Semi-Conductor | A substance that can conduct electricity under some conditions
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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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