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17 Cards in this Set

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6.2
6.2
a tiny particle from which all substances are composed.
atom
a tiny, extremly dense core
nucleus
one of the tiny particle that circle around the nucleus of an atom
electron
the cloud-like shield that around an atom's nucleus formed by the atom's fast-moving electrons
electron cloud
particles located in the particles (no charge)
neutron
positively charged particle located in the nucleus
proton
the number of protons in an atom
atomic number
6.3
6.3
a substance that is composed of only onetype of atom
element
a substance that is composed of more than one type of atom bonded together
compound
the most abundant of the transuranium element.
plutonium
a metal that is the densest
osmium
6.4
6.4
the creater of the periodic table of elements
Dmitri Mendeleev
the only metal that is liquid at room temperature
mercury
a metal that is often applied to polished steel to protect it from rusting and give the steel a mirrorlile surface
chromium