Study

Atoms-4th period

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  • What parts of an atom live in the nucleus?
    protons and neutrons
  • Which atom is in TNT?
    nitrogen
  • Which part of a square on the periodic tables tells the number of protons and also the number of electrons?
    the atomic number
  • Which atom is in diamonds?
    Carbon
  • Which part of an atom has a neutral charge?
    neutrons
  • Which atom has an atomic mass of 19.00?
    Fluorine
  • What atomic number is fluorine?
    9
  • What is the rounded atomic mass of neon?
    20
  • Which atom is found deep in the stars?
    neon
  • Carbon has an atomic number of ______.
    6
  • Who discovered oxygen?
    Jason Priestley
  • Which part of an atom has a positive charge?
    protons
  • When was nitrogen discovered?
    1772
  • What % of the atmosphere is made of nitrogen?
    78%
  • How many elements are on the periodic table?
    118
  • Carbon can be found in the ocean? True or False
    True