Chapter 7 CHEMICAL BONDING AND MOLECULAR GEOMETRY​

Chapter 7 CHEMICAL BONDING AND MOLECULAR GEOMETRY​

By Luis Bello

Previously Chapter 6

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6.1 Electromagnetic Energy

6.2 The Bohr Model

6.3 Development of Quantum Theory

6.4 Electronic Structure of Atoms (Electron Configurations)

6.5 Periodic Variations in Element Properties

Checking Comprehension

Multiple Choice

Which has the LONGEST wavelength and, therefore, the lowest frequency/energy

• Gamma Rays
• Radio Waves
• Visible Light
• Infrared rays

Multiple Choice

Which of the following electromagnetic waves has the lowest energy?

• gamma ray
• infrared wave
• visible light wave
• microwave

Multiple Choice

The shortest wavelength in visible light is______.

• violet
• red
• blue
• yellow

Multiple Choice

Which of the following sub-levels is correctly designated?

• 1p⁵

• 3f⁹

• 2p⁶

• 3d¹¹

Multiple Choice

According to Pauli Exclusion Principle, how many electrons may occupy a single orbital?

• 1

• 2

• 4

• 8

Multiple Choice

What rule states that single electrons must occupy each equal-energy orbital before additional electrons can occupy the same orbitals.

• Hund's rule

• Pauli Exclusion Principle

• Aufbau Principle

• None of the choices.

Multiple Choice

What is the electron configuration of Argon?

• 1s² 2s² 2p⁶

• 1s² 2s² 2p⁶ 3s¹

• 1s² 2s² 2p⁶ 3s²

• 1s² 2s² 2p⁶ 3s² 3p⁶

Multiple Choice

What orbital is shown in the picture?

• s orbital

• p orbital

• d orbital

• f orbital

Multiple Choice

Which of the following values does NOT represent a valid electron?

• n=(2), l=(1), ml=(1), ms=(+1/2)

• n=(4), l=(2), ml=(-1), ms=(-1/2)

• n=(2), l=(0), ml=(0), m=(-1/2)

• n=(4), l=(2), ml=(-3), ms=(+1/2)

Multiple Choice

Ionization energy is the...

• energy needed to remove the outermost electron.
• ability of an atom to attract electrons from another atom.

Multiple Choice

Electronegativity is the...

• energy needed to remove the outermost electron.
• ability of an atom to attract electrons from another atom.

Multiple Choice

As the Coulombic attraction increases the atomic radius: increases or decreases?

• increases
• decreases

Multiple Choice

Which element has the smaller atomic radius: potassium (K) or bromine (Br)?

• potassium (K)
• bromine (Br)