atomic element
Pure chemical substance
An atomic element is a substance that cannot be broken down into simpler substances by chemical means—one of the fundamental building blocks of matter.
Each element is defined by its number of protons: hydrogen has one, carbon has six, gold has seventy-nine.
The periodic table organizes all known elements by their atomic properties.
Usually shortened to just element in scientific contexts.
- hydrogenSimplest atomic element
- oxygenElement eight, colorless gas
- carbonSixth element, atomic symbol C
- periodic tableSystematic display of elements
- goldElement seventy-nine
gold rush · silver · uranium · periodic · nucleus · proton · neutron · electron · electron cloud · isotope · chemical bond · helium · noble gas · iron · heavy metal · copper · metal · radioactive
atomic elementcompound
Combined into one
chemical compound · molecule · molecular compound · polymer · organic compound
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