Download protons, neutrons

Performance Indicator
7.P.2.A.1
Develop and use simple atomic models to
illustrate the components of
elements(including the relative position and
charge of protons, neutrons, and electrons).
Atom
• https://www.youtube.com/watch?v=cpBb2bg
FO6I
Atom
• The atom is composed of subatomic particles:
protons, neutrons, and electrons that affect
the properties of an atom.
• Protons and neutrons have about the same
mass.
• Protons have a positive charge, while neutrons
have no charge.
• Electrons have a negative charge
Atom
• Protons and neutrons are tightly bound in a
tiny nucleus
• The nucleus is located in the center of the
atom with the electrons moving in random
patterns in the space around the nucleus
Atom
• An example of an atomic model for an
element:
History of Atom model
• http://glencoe.mheducation.com/sites/dl/free
/0078778085/164155/00044672.html
Think-pair-share
• Q: The three basic components of an atom
are:
• 1. protons, neutrons, and ions
2. protons, neutrons, and electrons
3. protons, neutrinos, and ions
4. protium, deuterium, and tritium