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Flashcards - Praxis Middle School Science: Periodic Table

Flashcards - Praxis Middle School Science: Periodic Table
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ionized
Ionization is the process by which an atom or a molecule acquires a negative or positive charge by gaining or losing electrons to form ions, often in conjunction with other chemical changes
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Alkaline earth metals
The alkaline earth metals are six chemical elements in column 2 of the Periodic table
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element
In mathematics, an element, or member, of a set is any one of the distinct objects that make up that set
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atom
An atom is the smallest constituent unit of ordinary matter that has the properties of a chemical element
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8 cards in set
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atom
An atom is the smallest constituent unit of ordinary matter that has the properties of a chemical element
element
In mathematics, an element, or member, of a set is any one of the distinct objects that make up that set
Alkaline earth metals
The alkaline earth metals are six chemical elements in column 2 of the Periodic table
ionized
Ionization is the process by which an atom or a molecule acquires a negative or positive charge by gaining or losing electrons to form ions, often in conjunction with other chemical changes
metal
A metal is a material that is typically hard, opaque, shiny, and has good electrical and thermal conductivity
metalloids
A metalloid is any chemical element which has properties in between those of metals and nonmetals, or that has a mixture of them
electron shell
In chemistry and atomic physics, an electron shell, or a principal energy level, may be thought of as an orbit followed by electrons around an atom's nucleus
halogens
The halogens or halogen elements are a group in the periodic table consisting of five chemically related elements: fluorine , chlorine , bromine , iodine , and astatine

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