Understanding Lewis Theory

What is one of the main limitations of Lewis Theory?

• It cannot explain the number of bonds an atom forms.

• It cannot predict the type of chemical bonds.

• It does not account for molecular shapes.

• It is not applicable to covalent bonding.

Who developed the Lewis Theory?

• Albert Einstein

• Gilbert Lewis

• Marie Curie

• Niels Bohr

How many valence electrons does oxygen have?

• 5

• 4

• 6

• 8

What is a Lewis dot structure used for?

• To show the number of protons in an atom

• To depict valence electrons around an atom

• To illustrate the atomic mass of an element

• To represent the nucleus of an atom

Which element is an exception in the main group elements regarding valence electrons?

• Carbon

• Nitrogen

• Oxygen

• Helium

How many covalent bonds does oxygen typically form?

• One

• Two

• Three

• Four

What determines the number of bonds an atom will form according to Lewis Theory?

• The number of neutrons

• The atomic mass

• The number of protons

• The number of unpaired valence electrons

What is the primary type of bonding explained by Lewis Theory?

• Hydrogen bonding

• Metallic bonding

• Covalent bonding

• Ionic bonding

What is the main focus of valence bond theory and molecular orbital theory?

• Illustrating the periodic table

• Describing molecular shapes and bond energies

• Predicting the number of protons

• Explaining atomic mass

Which of the following is NOT explained by Lewis Theory?

• Bond energies

• Valence electrons

• Number of bonds an atom forms

• Covalent bonding