CH12 -Pulling Together

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Dates

Recap – Worksheet

Review for the Exam

Unit 1 Objectives (Ch. 1, 2, 3)

Classify matter as compound, element, mixture or solution
Explain the Laws of Definite and Multiple proportions and how they are applied.
Explain the development of the modern atomic model through key experiments.
Describe the basic structure of the atom.
Calculate the number of protons, neutrons, and electrons of a given isotope or ion.
Calculate the atomic mass of an element given its isotopes.

Unit 2 Objectives (Ch. 7)

Calculate the wavelength and frequency of an electromagnetic wave.
Calculate the energy of a quantum of photons.
Calculate the energies of the levels of the hydrogen atom
Determine the spectrum of an atom given their energy levels
Explain the meaning of the four quantum numbers associated with an electron
Write the quantum numbers that describe an electron in an atomic orbital
Write the full electron configurations of an atom or ion.
Determine the electronic configurations of isoelectronic species
Explain the relationship between electron configurations and the periodic table
Predict the number of valence electrons of an element and its electron configuration based on its position in the periodic table.
Using the idea of shielding and effective nuclear charge, explain the trends in ionization energy and atomic size across the periods and groups of the periodic table.
Arrange ions in order of increasing or decreasing ion size.

Practice Problems

So, you want extra practice problems?
I suggest that you pick a problem from the list below that matches
Since the answers are provided on Schoology then you can check your work as you go

Unit 1 – Practice Problems

Unit 2 – Practice Problems

Homework

Chemteacher