Who first suggested the term "atomos," meaning "uncuttable"?

• Aristotle

• Democritus

• Plato

• Socrates

What did early models of the atom suggest about their behavior?

• Atoms are stationary

• Atoms act like small spheres

• Atoms are flat surfaces

• Atoms are invisible

What term is used to describe combinations of atoms?

• Elements

• Compounds

• Molecules

• Mixtures

What did scientists use to store large amounts of charged matter?

• Batteries

• Capacitors

• Generators

• Transformers

What is the charge of an electron?

• Positive

• Neutral

• Negative

• Variable

How many individual protons or electrons does one coulomb represent?

• 6,240,000

• 6,240,000,000

• 6,240,000,000,000

• 6,240,000,000,000,000,000

What property of particles was introduced by the new model of charge?

• Mass

• Volume

• Charge

• Density

In which model do electrons exert stronger forces as they get closer to each other?

• Model A

• Model B

• Both Model A and B

• Neither Model A nor B

What is the behavior of electrons in Model A?

• They exert strong forces

• They move around freely and collide

• They form a rigid structure

• They do not interact

What is the role of outer electrons in a wire made of copper atoms?

• They are tightly held

• They share with nearby atoms

• They do not interact

• They form a solid structure