Isotope Review

Front

What is an isotope?

Back

An isotope is a variant of a chemical element that has the same number of protons but a different number of neutrons, resulting in a different atomic mass.

Front

How do you determine the mass number of an isotope?

Back

The mass number of an isotope is determined by adding the number of protons and neutrons in the nucleus.

Front

What is the isotope symbol format?

Back

The isotope symbol is written as A (mass number) over Z (atomic number) followed by the element symbol, e.g., A/Z Element.

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 does Lithium have?

Back

Lithium has 3 protons.

Front

What is the mass number of Lithium-6?

Back

The mass number of Lithium-6 is 6, which means it has 3 protons and 3 neutrons.

Front

Which isotope of Chromium is more abundant, Cr-52 or Cr-53?

Back

Cr-52 is the more abundant isotope of Chromium.

Front

What is the mass number of Iodine-131?

Back

The mass number of Iodine-131 is 131.

Front

How do you identify an isotope from a given number of protons and neutrons?

Back

An isotope can be identified by its mass number, which is the sum of its protons and neutrons.

Front

What is the significance of atomic mass in isotopes?

Back

Atomic mass is a weighted average of the masses of an element's isotopes, reflecting their relative abundance.