Isotopes

Front

What is an isotope?

Back

Isotopes are variants of a particular chemical element that have the same number of protons but different numbers of neutrons.

Front

How do you determine the mass number of an isotope?

Back

The mass number is the sum of the number of protons and neutrons in the nucleus of an atom.

Front

What is the atomic number of an element?

Back

The atomic number is the number of protons in the nucleus of an atom, which determines the element's identity.

Front

How many protons are in the isotope C-14?

Back

6 protons.

Front

If an atom has 76 protons and 114 neutrons, what is its isotope notation?

Back

Osmium-190 (76 protons + 114 neutrons = 190 mass number).

Front

What do isotopes of the same element have in common?

Back

They have the same atomic number and number of protons.

Front

How many neutrons does the isotope Li-7 have?

Back

Li-7 has 4 neutrons (7 mass number - 3 protons = 4 neutrons).

Front

What is the difference between isotopes of an element?

Back

Isotopes differ in the number of neutrons, which results in different mass numbers.

Front

What is the significance of isotopes in medicine?

Back

Isotopes are used in medical imaging and treatment, such as radioactive iodine in thyroid treatment.

Front

How can isotopes be used in dating archaeological finds?

Back

Isotopes like Carbon-14 are used in radiocarbon dating to determine the age of organic materials.