Unit 5

Essential Question(s):

How are electrons arranged about the nucleus of an atom?

How are trends of the periodic table useful to chemist?

Standard(s):

• HS-PS1-1 Matter and its Interactions

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.

• HS-PS4-1 Waves and their Applications in Technologies for Information Transfer

Use mathematical representations to support a claim regarding relationships among the frequency, wavelength, and speed of waves traveling in various media.

"I can" Statements:

• Draw an orbital box diagram, and write an electron configuration for a given element.
• Use a periodic table and data, to identify periodic trends.
• Explain how atomic spectra correlate with the energy levels in atoms.
• Describe the sub-levels and orbitals in atoms.
• Draw electron dot diagrams.

Reinforcement Activity:

• Laboratory investigation: graphing periodic trends