Study element builder vocab Flash Cards

 
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element builder vocab

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valence electrons
electrons found in the outermost energy level of an atom
radioactive
capable of releasing radiation
-in a radioactive atom, the nucleus can spontaneously decay and emit particles and/or light
proton
a positively charged particle located in the nucleus of an atom
periodic table
a chart that organizes the chemical elements based on their properties
nucleus
the positively charged, dense center of an atom
neutron
a particle with no charge located in the nucleus of an atom
mass number
the number of protons plus neutrons in the nucleus of an atom
isotope
one of several forms of the same element
ion
an atom that has an electrical charge because it has gained or lost electrons
energy level
a particular region where electrons can orbit a nucleus
element
a pure substance that cannot be broken down into simpler substances by ordinary chemical means
electron dot diagram
a diagram that shows the element symbol surrounded by dots representing valence electrons
electron
a negatively charged particle that moves around the nucleus
atomic number
the number of protons in the nucleus of an atom
Atom
the basic unit of matter
-the smallest particle of an element that still has all the properties of the element
-made up of protons, neutrons, and electrons which are all smaller
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