Exploring Atomic Structure and Coulomb's Law

What did JJ Thompson discover using the cathode ray tube?

• Neutrons

• Protons

• Alpha particles

• Electrons

What was the main conclusion from Rutherford's gold foil experiment?

• Neutrons are in the nucleus

• Electrons are positively charged

• Atoms are mostly empty space

• Atoms are solid throughout

What did Robert Milliken's oil drop experiment measure?

• The mass of a proton

• The charge of an electron

• The speed of light

• The density of gold

According to Niels Bohr, how do electrons move around the nucleus?

• In random paths

• In fixed orbits

• In a straight line

• In a zigzag pattern

Who discovered neutrons and when?

• James Chadwick in the early 1930s

• Robert Milliken in 1908

• Ernest Rutherford in 1911

• JJ Thompson in 1897

What is the relative mass of an electron compared to protons and neutrons?

• Equal to protons and neutrons

• Twice the mass of protons and neutrons

• One eighteen-hundredth of the mass of protons and neutrons

• Half the mass of protons and neutrons

What does Coulomb's law help us understand?

• The structure of the nucleus

• The behavior of neutrons

• The forces between charged particles

• The speed of light

Tags

NGSS.HS-PS2-4

According to Coulomb's law, what happens to the attractive force if the distance between two charged particles increases?

• The force remains the same

• The force decreases

• The force increases

• The force becomes zero

Tags

NGSS.HS-PS2-4

Why is it easier to remove an electron from lithium compared to helium?

• Helium's electron is closer to the nucleus

• Helium has fewer electrons

• Lithium's electron is farther from the nucleus

• Lithium has more protons

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is the main factor that determines the strength of the electrostatic force between two charged particles?

• The mass of the particles

• The temperature of the environment

• The distance between the particles

• The speed of the particles

Tags

NGSS.HS-PS2-4