Please put away all cell phones and electronic devices during the period today.

Journal Entry:

What are the different kinds of pure substances?

Learning Intentions

• You will learn how to how to analyze the atomic theories throughout history.
• You will learn how to analyze a mass spectrometer graph .
• You will learn how to complete practice problems using average masses of particular isotopes and their relative abundance to determine average atomic mass.
• You will learn how to categorize pure substances.
• You will learn to name and write formulas for molecular and ionic formulas.

Closing Task:

You can take a quiz about atomic theory history, average atomic mass and mass spectrometry graph data.

You can categorize, name and write formulas for pure substances including molecules, molecular compounds, and ionic compounds.

Content Standards:

SPQ-1.B Explain the quantitative relationship between the mass spectrum of an element and the masses of the element's isotopes.