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17 Cards in this Set
- Front
- Back
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atom
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smallest particle of an element, building blocks of matter.
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atomic number
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the number of protons in an atom’s nucleus.
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Bohr diagram
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a small circle in the middle represent the nucleus
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chemical symbol
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one or two letters initial that represents the name of an element.
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electron
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a negatively charged particles that moves in an orbit shell outside an atom’s nucleus.
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energy level
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electrons are found in paths around an atoms nucleus energy level
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family
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a vertical column in the periodic table that contains similar element qualities.
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isotope
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atom of the same element that have different numbers of number of of neutrons in their nucleus.
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mass number
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total number of protons and neutrons in a nucleus.
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metalloid
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an element with properties of both metals and nonmetals.
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metal
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any element on the left side of the periodic table except hydrogen good conductor of electrical
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neutron
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a particle within an atom’s nucleus that has no electrical charge.
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non-metal
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an element that lacks the characteristic of a metal elements on the right side of the table
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nucleus
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the control center of a cell.
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period
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horizontal column in the periodic table that represents the energy level of an element.
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periodic table
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a table of all of the elements arranged by number and grouped accounting to similar properties.
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proton
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a positively charged particles in an atom’s nucleus
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