Understanding Isotopes and Their Applications

The video tutorial explains isotopes, which are atoms of the same element with different numbers of neutrons. It discusses the chemical and physical properties of isotopes, highlighting that while chemical properties remain similar, physical properties differ due to mass variations. The tutorial also covers radioisotopes, which emit radiation and have applications in medicine, defense, archeology, and geology. Examples include technetium-99 for tumor detection and carbon-14 for carbon dating.

What is the defining characteristic of isotopes of an element?

• Different number of protons

• Different number of electrons

• Different number of neutrons

• Different number of atoms

Why do isotopes have similar chemical properties?

• They have the same density

• They have the same mass

• They have the same number of electrons

• They have the same number of neutrons

Which isotope of hydrogen has a higher boiling point?

• Hydrogen-1

• Hydrogen-2

• Hydrogen-3

• Hydrogen-4

What is a radioisotope?

• An isotope with extra electrons

• An isotope with a stable nucleus

• An isotope that emits radiation

• An isotope with no neutrons

How do radioisotopes benefit us despite being dangerous?

• They emit low energy radiation

• They are stable

• They have no neutrons

• They can be used in various applications when handled carefully

Which radioisotope is used in smoke detectors?

• Technetium-99

• Californium-252

• Iodine-131

• Americium-241

What is the primary use of Technetium-99 in medicine?

• Estimating the age of rocks

• Detecting explosives

• Treating thyroid disorders

• Detecting tumors

In which field is Californium-252 used?

• Defense

• Archaeology

• Medicine

• Safety

Which isotope is commonly used for carbon dating?

• Carbon-15

• Carbon-12

• Carbon-13

• Carbon-14

What is the role of Uranium-238 in geology?

• Detecting tumors

• Detecting explosives

• Treating thyroid disorders

• Estimating the age of rocks