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20 Cards in this Set
- Front
- Back
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atom
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basic unit of chemical element, building block of matter, smallest unit in a element.
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atomic number
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number of protons in the nucleus in a atom.
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chemical symbol
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1 or 2 letters to represent a element.
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electron
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subatomic particle carrying a negative electric charge, moves in orbit around the nucleus.
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energy level
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bounded particles that can hold a certain amount of energy, electrons found in paths around the nucleus.
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isotope
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different kinds of atoms in one chemical unit.
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mass number
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number of electrons and protons in a atom.
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metalliod
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term in chemistry in chemical elements.
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metal
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chemical unit that is the conductor of electricity and heat.
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neutron
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subatomic particle with no electric charge that is slightly bigger than a proton.
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non-metal
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term in chemistry in chemical elements.
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nucleus
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control center of a cell and has the DNA.
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period
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set of elements in the periodic table.
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periodic table
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the list of elements.
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proton
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part of a atom with a positive charge.
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nucleus
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control center of a cell and has the DNA.
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period
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set of elements in the periodic table.
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Bohr diagram
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a diagram that shows the number of protons and neutrons in a nucleus that orbit energy levels and electrons.
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proton
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part of a atom with a positive charge.
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family/group
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a vertical column in the periodic table that contains same like element properties.
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