Your cell phone should be away during all times today.

Learning Intentions

• You can create a model for particular trend using straws/stick and Styrofoam.

• You can define your selected property.

• You can discover the trend of your property on the periodic table.

• You can explain why the trend of your property is the way it is.

Content Standards being covered:

HS-PS1-1. Use the periodic table as a model to predict the relative properties of elements based on the patterns of electrons in the outermost energy level of atoms.

Student understands how the periodic table is organized, how that organization can be used to determine an elements properties and trends of properties on the periodic table.
93. Electronegativity is the amount of attraction that an atom has to pull an electron to itself, removing it from another atom and forming an anion (measured in Pauling Units)
94. Electronegativity increases across the periodic table from left to right and up the groups
95. Ionization Energy is the amount of energy absorbed by an atom to remove its electron, forming a cation (measured in kJ/mol)
96. Ionization energy increases across the periods from left to right and up the groups
97. Melting Points increase toward the center and up to carbon
98. An atom’s Atomic Radius increases from right to left across the periods and down the groups
99. Most trends of properties on the periodic table are influenced by nuclear charge (number of protons) and electron shielding.

Habits of Mind/Life skills being covered:

Thinking Flexibly

Journal Entry:

What questions do you have about your periodic trend straw model?