Atomic Structure and Particle Properties

This video provides a comprehensive review of atomic structure, including the nucleus, protons, neutrons, and electrons. It explains the periodic table's role in identifying elements and discusses isotopes, their stability, and radioactive decay. The video also covers electron energy levels, how electrons can become excited, and the process of ionization, where atoms become ions by losing electrons.

What is the charge of a neutron?

• Neutral

• Variable

• Negative

• Positive

How many times smaller is an electron compared to a proton?

• 100 times

• 500 times

• 1000 times

• 2000 times

What does the atomic number of an element represent?

• Number of neutrons

• Number of isotopes

• Number of protons

• Number of electrons

If an atom has 3 protons and 4 neutrons, what is its mass number?

• 12

• 7

• 4

• 3

What defines isotopes of the same element?

• Same number of neutrons

• Same mass number

• Same number of protons

• Same electron configuration

What is the process called when unstable isotopes emit radiation?

• Electron excitation

• Nuclear fusion

• Radioactive decay

• Ionization

What happens when an electron becomes excited?

• It loses energy

• It moves to a lower energy level

• It becomes a proton

• It moves to a higher energy level

What is required for an electron to jump to a higher energy level?

• Nuclear force

• Electromagnetic radiation

• Heat energy

• Gravitational pull

What is formed when an atom loses an electron?

• A negative ion

• A positive ion

• A neutral atom

• A neutron

What does ionizing radiation do to atoms?

• Adds protons

• Removes neutrons

• Knocks off electrons

• Changes the atomic number