Isotopes and Atomic Structure Concepts

The video introduces isotopes, focusing on carbon isotopes and their differences in neutron numbers. It explains how isotopes affect atomic mass and discusses the stability and radioactivity of isotopes like carbon-14. The video also covers how isotopes form chemical bonds and their similar chemical properties despite neutron differences.

What is the primary difference between isotopes of the same element?

• Atomic number

• Number of neutrons

• Number of electrons

• Number of protons

What does the atomic number of an element represent?

• Number of neutrons

• Number of protons

• Number of electrons

• Mass number

Why is the average atomic mass of carbon not exactly 12?

• Because of the presence of different isotopes

• Due to the varying number of electrons

• Because of the atomic number

• Due to the presence of protons

What is the significance of the mass number in isotopes?

• It determines the chemical properties

• It is the sum of protons and neutrons

• It is the number of electrons

• It is the atomic number

What happens to the stability of carbon when it has six protons and eight neutrons?

• It becomes more stable

• It remains stable

• It becomes radioactive

• It becomes unstable

Which carbon isotope is known to be unstable?

• Carbon-12

• Carbon-13

• Carbon-15

• Carbon-14

What is the role of neutrons in the nucleus of an atom?

• They determine the atomic number

• They help stabilize the nucleus

• They determine the chemical properties

• They are responsible for the charge of the atom

Can isotopes form chemical bonds?

• No, because they differ in neutron count

• Yes, because they have the same number of electrons

• No, they cannot form bonds

• Yes, but only radioactive isotopes can

What primarily determines the chemical properties of isotopes?

• Number of electrons

• Number of protons

• Number of neutrons

• Mass number

Why do isotopes generally have similar chemical properties?

• They have the same mass number

• They have the same number of electrons

• They have the same number of protons

• They have the same number of neutrons