Unit 2 Lessons 7 & 8 Review

What is meant by the term "partial charge" in the context of atomic polarization?

• A complete transfer of electrons between atoms

• A slight imbalance in electron distribution within an atom

• A permanent charge on an atom

• A complete loss of electrons from an atom

Which of the following best describes polarization in atoms?

• Permanent electron transfer between atoms

• Temporary electron movement within an atom

• Permanent charge on an atom

• Complete electron sharing between atoms

What happens to electrons during the polarization of an atom?

• They are transferred to another atom

• They move to one side of the atom

• They are lost from the atom

• They remain evenly distributed

Which of the following is NOT required for polarization to occur between two objects?

• Physical contact

• Presence of electrons

• Partial charges

• Proximity

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

In the analogy of a tug-of-war, what do the teams represent in a molecule?

• Protons

• Neutrons

• Electrons

• Nuclei

What is the result of one atom pulling more strongly on shared electrons in a molecule?

• The atom becomes positively charged

• The atom becomes negatively charged

• The atom loses electrons

• The atom gains protons

What is the effect of a polarized molecule on a nearby molecule?

• It transfers electrons to the nearby molecule

• It induces partial charges in the nearby molecule

• It neutralizes the nearby molecule

• It repels the nearby molecule completely

Tags

NGSS.HS-PS3-5

Which of the following statements is true about electron transfer during polarization?

• Electrons are permanently transferred

• Electrons are temporarily transferred

• Electrons are not transferred

• Electrons are lost

What is the primary cause of polarization in atoms?

• Movement of protons

• Movement of neutrons

• Movement of electrons

• Movement of nuclei

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of the following best describes the charge distribution in a polarized atom?

• Evenly distributed

• Concentrated at the center

• Shifted to one side

• Completely absent