Understanding Isotopes

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

• Different atomic numbers

• Different number of electrons

• Different number of neutrons

• Different number of protons

How are isotopes naturally formed?

• Through fusion reactions

• Through chemical reactions

• By radioactive decay

• By adding electrons

What is transmutation in the context of isotopes?

• Removing electrons from an element

• Adding protons to an element

• Changing an element into another

• Changing the atomic number

Which isotope of carbon is used for dating ancient artifacts?

• Carbon-15

• Carbon-13

• Carbon-12

• Carbon-14

What is the primary use of carbon-14 in scientific research?

• Determining the age of rocks

• Estimating the age of organic materials

• Measuring radiation levels

• Studying chemical reactions

Which isotope is used in smoke detectors?

• Nickel-63

• Americium-241

• Selenium-75

• Silicon-32

How do isotopes contribute to medical research?

• Through diagnostic imaging

• Through chemical reactions

• By providing energy

• By altering DNA

Which isotope is used to detect explosives at airports?

• Uranium-234

• Lithium-7

• Nickel-63

• Selenium-75

What role do isotopes play in nuclear reactors?

• They are used as fuel

• They are used for waste disposal

• They stabilize the reaction

• They provide cooling

What is the significance of isotopes in scientific discovery?

• They reduce energy consumption

• They limit research scope

• They offer endless possibilities

• They simplify chemical reactions