I. Reading Exercises:

Exercise 1. Read and memorize using a dictionary:

tools and models, computational chemistry, complex molecules, precise quantum mechanical description, semi-quantitative approaches, density function theory, unpaired electrons, magnetic coupling, quantitative and qualitative theories, T-shaped, reactivity, valence electrons, point group symmetry, simplification, vibrational state, excited state, absorption, substituted metal carbonyl complexes, metal-ligand bond

Exercise 2. Answer the questions:

1) What promoted the development of theoretical and computational chemistry?

2) How did the exceptions to qualitative and quantitative theories lead to the development of new technologies?

3) What are the advantages of qualitative theories?

4) What role does Group Theory play in inorganic chemistry?

Exercise 3. Match the left part with the right:

1. The theory of chemical reactions is	a) is difficult.
2. The most common applications of symmetry to spectroscopy	b) the magnetism of many simple complexes.
3. For the transition metals crystal field theory allows one to understand	c) more challenging than the theory for a static molecule.
4. Precise quantum mechanical descriptions for multielectron species	d) involve vibrational and electronic spectra.

II. Speaking Exercises:

Exercise 1. Describe bohr model, molecular orbital theory, crystal field theory, electron counting, molecular shape using the suggested words and expressions as in example:

bohr model

alternative perspective; atom; tools and models; computational chemistry; complex molecules

example:

An alternative perspective on the area of inorganic chemistry begins with the Bohr model of the atom. This model uses the tools and models of theoretical chemistry and computational chemistry. It expands into bonding in simple and then more complex molecules.

molecular orbital theory

semi-quantitative; semi-empirical; approaches; ligand field theory

crystal field theory

exceptions; development; diametric; room temperature; two unpaired electrons; magnetism

electron counting

powerful qualitative approach; reactivity; members; valence electrons; central atom

molecular shape

language; point group symmetry; factoring; simplification; calculations; symmetry properties; excited states; intensities

Exercise 2. Ask questions to the given answers:

1) Question: ___________________________________________ ?

Answer: Marcus theory provides a powerful linkage between bonding, mechanism, and reactivity.

2) Question: ___________________________________________ ?

Answer: A classic application of Group Theory is the prediction of the number of C-O vibrations in substituted metal carbonyl complexes.

3) Question: ___________________________________________ ?

Answer: Within main group compounds VSEPR theory predicts the structures of main group compounds.