An element is made up of only one kind of atom

An element is a pure substance that contains only one type of atom. The element hydrogen consists only of hydrogen atoms; the element iron consists only of iron atoms. The atoms of each element have certain characteristics or prop-

2.3 The Periodic Table The periodic table groups the elements according to their physical and chemical properties. Elements 1-92 occur in nature; elements above 92 were created in the laboratory.

The Plasma Membrane Composed

Atomic mass (number of protons plus number of neutrons averaged over all isotopes)

2.3 The Periodic Table The periodic table groups the elements according to their physical and chemical properties. Elements 1-92 occur in nature; elements above 92 were created in the laboratory.

Atomic mass (number of protons plus number of neutrons averaged over all isotopes)

Mass Number All Elements
Lanthanide series
Actinide series

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Responses

  • Essi
    How do you find the number of protons in an emelment with the mass number and the nutrons?
    8 years ago
  • jessica
    How were the elements above 92 made?
    8 years ago
  • fiyori
    Is an element made of only one type of atom?
    7 years ago

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