Chemistry Part 1

What does chemistry help us understand according to Hank Green?

• Mathematical theories unrelated to daily life

• Only the biological aspects of science

• The secrets of life's origin and technological advancements

• Historical events only

Who played a crucial role in proving the existence of atoms?

• Albert Einstein

• Marie Curie

• Niels Bohr

• Isaac Newton

What phenomenon did Einstein explain to prove the existence of atoms?

• Gravitational pull

• Quantum entanglement

• Brownian motion

• Electromagnetic radiation

What determines the chemical element of an atom?

• Atomic mass

• Number of neutrons

• Number of electrons

• Number of protons

What is the significance of isotopes in chemistry?

• They change the chemical properties of elements

• They have different numbers of protons

• They are unstable and decay quickly

• They have different numbers of neutrons but the same chemical properties