Chemistrysmallest part of an element that can be identified as that elementsubstance that CANNOT be chemically broken down into simpler substancescenter, or core, of an atom (where the protons and neutrons are located)particle that has a positive charge - located in the nucleus of an atom. You can ...
element - substance that CANNOT be chemically broken down into simpler substances
atom - smallest part of an element that can be identified as that element
nucleus - center, or core, of an atom (where the protons and neutrons are located)
proton - particle that has a positive charge - located in the nucleus of an atom. You can
figure out the number of protons by looking at the atomic number of an element.
neutron - particle that has no charge - located in the nucleus of an atom. You can figure
out the number of neutrons by SUBTRACTING the atomic Mass minus the atomic
number.
electron - particle that has a negative charge - located in rings outside the nucleus of an
atom. You can figure out the number of electrons by looking at the atomic number of an
element.
atomic number - number of protons in the nucleus of an atom. This is the same number
as the number of electrons
atomic mass - total mass of the protons and neutrons in an atom
energy level - place in an electron cloud where an electron is most likely to be found -
rings. Remember, 2-8-18-32.
metal - element that has the property of shiny luster, ductility, and malleability
luster - the way a material reflects light
malleable - able to be hammered into different shapes
ductile - able to be drawn into thin wires
nonmetal - element that lacks most of the properties of a metal, is not shiny, does not
conduct electricity or heat well, is not malleable so it is called brittle or breakable.
halogens - elements that make up Group 17 in the periodic table
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