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Cosmic Rays - Try This!

Cosmic Rays

Try this!

Cosmic rays consist of all the natural elements. See if you can distinguish the properties of some of these elements.

Sample information from the periodic table for the element "Helium":

Solid: cube

Liquid: water drop

Gas: balloon

Helium, atomic number=2, atomic mass=4.002

Use the information for the elements given below to answer the questions.

Platinum, atomic number=78, atomic mass=195.08 Mercury, atomic number=80, atomic mass=200.59 Lead, atomic number=82, atomic mass=207.2

  1. How many protons would platinum have? 78

  2. How many neutrons would mercury have? 120

  3. How many electrons would lead have? 82


A service of the High Energy Astrophysics Science Archive Research Center (HEASARC), Dr. Alan Smale (Director), within the Astrophysics Science Division (ASD) at NASA/GSFC

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