Valence Electrons, Ions & Lewis Dot Structures

Multiple Choice

Which of the following are the three main subatomic particles that make up an atom?

• Protons, Neutrons, Electrons

• Protons, Neutrons, Photons

• Electrons, Neutrons, Positrons

• Protons, Electrons, Ions

Fill in the Blank

Fill in the blank: Electrons are located outside the nucleus in the ______ cloud.

Multiple Choice

Based on the periodic table shown, which groups have elements with 8 valence electrons? Select all that apply.

• Group 1

• Group 2

• Group 17

• Group 18

Multiple Choice

Which of the following best describes the purpose of Lewis dot structures?

• To show the number of protons in an atom

• To represent how many valence electrons an atom has

• To display the atomic mass of an element

• To illustrate the number of neutrons in an atom

Draw

Draw the Lewis Dot for Phosphorus

Multiple Choice

This is a correct dot diagram for oxygen (O)

• true
• false

Multiple Choice

Which elements are exceptions to the octet rule and only need 2 electrons to achieve a full outer shell?

• Hydrogen and Helium

• Lithium and Beryllium

• Boron and Carbon

• Oxygen and Nitrogen

Fill in the Blank

Fill in the blank: When nitrogen gains 3 electrons, it becomes stable and forms a charge of ___ .

-

Multiple Select

Which of the following statements are correct about how metals and nonmetals form ions?

• Metals gain valence electrons to form anions

• Metals lose valence electrons to form cations

• Nonmetals gain valence electrons to form anions

• Nonmetals lose valence electrons to form cations

Open Ended

Reflecting on today's lesson about valence electrons, ions, and Lewis dot structures, what is one question you still have or a concept you would like to explore further?

Multiple Select

Which topic from the lesson did you find most interesting or would like to learn more about: the Bohr model, valence electrons, Lewis dot structures, or ions?

• Bohr model

• Valence electrons

• Lewis dot structures

• Ions