Showing posts with label Ions. Show all posts
Showing posts with label Ions. Show all posts

Thursday, October 27, 2011

Thursday, September 15, 2011

Isotopes and Ions

Notes for Page 23.

Atoms are identified by their # of protons.
  • The # of protons DOES NOT change
  • The # of neutrons CAN change
  • The # of electrons CAN change
When the # of neutrons and electrons change the atomic structure/description also changes.

Isotopes
  • Atoms of the SAME element with DIFFERENT atomic masses
  • Occur when a change in neutrons occurs
  • All elements have at least two naturally occurring elements
Two ways to write isotopes
1)






Ex.

2)


Ex.

Ions
  • Atoms with a charge
  • Occur when there is a change in # of electrons
Two types:
1) Cation - positively charged ion
2) Anion - negatively charged ion

Charge is written in the top right corner of the chemical symbol







Quizzes

Quiz #1 is a great quiz!
Quiz #2 is another great quiz!
Quiz #3 is a very basic matching quiz.
Quiz #4 is a really great quiz.

Worksheets

This is a great worksheet on the Subatomic Chart that includes Isotopes and Ions.
This is a great worksheet on atomic structure with isotopes and ions.