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CHEMISTRY RECAP FROM MIDDLE SCHOOL

LESSON 2

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VIDEO LOG: 
USE THIS TO ANSWER QUICK CHECK QUESTIONS ON ISOTOPES

VIDEO LOG:  USE THIS TO ANSWER QUICK CHECK QUESTIONS ON VALENCY AND LEWIS DOT STRUCTURES

READ PURPLE SECTIONS:

IONS

ISOTOPES

USE THIS READING TO ANSWER QUICK CHECK QUESTIONS

FOR YOUR NOTEBOOK:

Lesson 2:  Chemistry Recap From Middle School

Isotopes | Valence Electrons


  1. Isotopes - Atoms of the same element, but with a different number of neutrons.

  2. Valence Electrons - number of electrons on the outer orbital of an atom.  Chemists use them to help determine how they bond with other atoms.

  3. Lewis Dot Structures - a visual representation of valence electrons and bonding between atoms.  (Includes the element symbol and dots representing valence electrons)

  4. Radioactivity - Energetic state of an atom where there are either too many or too little number of neutrons, thus making the atom unstable.

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ANSWER QUESTIONS ON YOUR QUICK CHECK USING THIS SIMULATION.  :-)

LINK TO GEOLOGY

USE THIS LINK TO ANSWER:

Quick Check questions about the most common elements in the earth's crust.

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