Subatomic Particles and Atomic Structure

This video tutorial introduces basic chemistry concepts, focusing on atomic structure, subatomic particles, and their charges. It explains the composition of atoms, including protons, neutrons, and electrons, and their respective charges and masses. The tutorial covers the concept of elements, atomic numbers, and mass numbers, using carbon as an example. It also delves into isotopes, their properties, and the significance of radioactive isotopes, highlighting their applications in dating, medical treatments, and scientific experiments.

What are the three main subatomic particles found in an atom?

• Protons, Electrons, and Photons

• Electrons, Neutrons, and Photons

• Protons, Neutrons, and Photons

• Protons, Neutrons, and Electrons

Where are electrons located in an atom?

• Between protons and neutrons

• In the center of the nucleus

• Outside the nucleus

• Inside the nucleus

What charge does the nucleus of an atom have?

• Variable

• Positive

• Neutral

• Negative

What is the role of energy levels in an atom?

• They define the atom's charge

• They are the location of protons

• They determine the atom's mass

• They are the paths where electrons move

What determines the atomic number of an element?

• Number of neutrons

• Number of isotopes

• Number of protons

• Number of electrons

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

• Subtract the atomic number from the mass number

• Add the atomic number to the mass number

• Multiply the atomic number by the mass number

• Divide the mass number by the atomic number

What is an isotope?

• An atom with a different number of energy levels

• An atom with a different number of neutrons

• An atom with a different number of electrons

• An atom with a different number of protons

Which carbon isotope is radioactive?

• Carbon-14

• Carbon-13

• Carbon-15

• Carbon-12

What is a common use of radioactive isotopes?

• Producing solar energy

• Dating rocks and fossils

• Generating electricity

• Creating new elements

What was the main finding of the Hershey and Chase experiment?

• Isotopes determine inheritance

• Neutrons carry genetic information

• Proteins are the inheritable factor

• DNA is the inheritable factor