This video tutorial covers the basics of atomic structure, including the historical experiments by scientists like Rutherford, Chadwick, and Thompson. It explains atomic notation, detailing the significance of atomic and mass numbers. The tutorial provides examples and practice problems to reinforce learning. It also introduces the concept of ions, differentiating between cations and anions, and discusses how atoms gain or lose electrons to form charged particles. The session concludes with a call for feedback and preparation for the next class.

What is the first resource you need for the lesson on atomic structure?

• A lab coat

• A textbook

• A periodic table

• A calculator

Tags

NGSS.MS-PS1-1

Which scientist's experiment is associated with the discovery of the neutron?

• Rutherford

• Bohr

• Thomson

• Chadwick

What is the charge of a proton?

• Neutral

• Negative

• Positive

• Variable

What unit is used to measure the mass of protons and neutrons?

• Kilograms

• Atomic Mass Unit (AMU)

• Milligrams

• Grams

What does the letter 'Z' represent in atomic notation?

• Number of neutrons

• Number of electrons

• Atomic mass

• Atomic number

How do you calculate the number of neutrons in an atom?

• Subtract the atomic number from the atomic mass number

• Add the number of protons and electrons

• Subtract the number of electrons from the atomic number

• Add the atomic number and atomic mass number

What is the atomic number of scandium?

• 21

• 34

• 24

• 45

What is the charge of an ion that has lost electrons?

• Neutral

• Variable

• Negative

• Positive

What is the term for a negatively charged ion?

• Cation

• Neutron

• Anion

• Proton

Which type of atoms always form cations?

• Non-metal atoms

• Metal atoms

• Noble gases

• Metalloids