Material Science and Electron Structure

Open Ended

In what ways do you think understanding electron structure could impact the development of new technologies or materials?

Multiple Choice

Which of the following best explains why the same atoms can create very different materials?

• The arrangement of electrons in atoms

• The color of the atoms

• The temperature at which atoms are found

• The size of the atoms

Open Ended

Explain how the arrangement of electrons affects the properties of materials such as diamond and graphite.

Multiple Choice

Which property makes diamond and graphite feel completely different, even though both are made of carbon atoms?

• The arrangement of electrons

• The number of atoms

• The color of the material

• The temperature at which they are formed

Multiple Choice

What is the main reason atoms stick together to form chemical bonds?

• Atoms share or transfer electrons

• Atoms are attracted by gravity

• Atoms are compressed together

• Atoms are heated

Multiple Select

Select all statements that correctly describe why some liquids conduct electricity.

• Dissolved substances form ions

• Ions move and carry electric charge

• Electric current flows through moving ions

• Pure water conducts electricity

Open Ended

Describe the difference between a cation and an anion, and explain how ions are formed.

Multiple Choice

Which property of atomic structure determines whether a material is hard or soft?

• Bond strength

• Color

• Density

• Melting point

Multiple Select

Select all the factors that contribute to the flexibility of metals compared to glass.

• Metal atoms can slide in layers

• Free electrons keep atoms connected

• Glass structure cannot rearrange easily

• Glass has a sea of electrons

Open Ended

Explain how the atomic structure of metals allows them to bend without breaking, while glass cannot.

Multiple Choice

Which of the following statements about electric current is correct?

• Electric current is the flow of electrons.

• Electric current is the flow of protons.

• Electric current is the flow of neutrons.

• Electric current is the flow of atoms.

Open Ended

Compare how atomic structure affects both the mechanical and electrical properties of metals.

Multiple Choice

Why do metals conduct electricity better than insulators?

• Because electrons are free to move in metals

• Because metals have more protons

• Because insulators have more atoms

• Because insulators are heavier

Multiple Select

Which of the following are true about semiconductors?

• Electrons can move with some energy

• Doping can add extra electrons or holes

• Current cannot be controlled in semiconductors

• Heat or light can activate electrons

Multiple Choice

What happens when electrons in a material absorb specific energies of light?

• They jump to higher energy levels

• They emit sound

• They become protons

• They disappear

Open Ended

Describe how electron spin leads to magnetism in certain materials.

Multiple Choice

Why is laser light considered so powerful compared to regular light?

• Because electrons emit light in a synchronized way

• Because it is always visible to the human eye

• Because it is made of different colors

• Because it cannot be focused

Open Ended

Explain how energy and bonding affect the states of matter.

Multiple Choice

Which of the following statements about plasma is correct?

• Plasma is an ionized gas with free electrons and ions

• Plasma is a solid with strong atomic bonds

• Plasma is a liquid with weak bonds

• Plasma is a gas with no energy

Multiple Select

Select all properties that describe a superfluid.

• Zero viscosity

• Atoms behave as a single quantum system

• High energy loss

• Occurs at extremely low temperatures

Open Ended

Reflecting on today's session about electron structure, what is one question you still have or a topic you would like to explore further?

Multiple Choice

Which of the following questions best summarizes your curiosity about the electron structure after today's lesson?

• Why can the same atoms create very different materials?

• What really 'flows' in electricity?

• Why does the human body use electricity?

• Could plasma power our civilization?