Isotopes 1

Front

What are isotopes?

Back

Isotopes are variants of a chemical element that have the same number of protons but different numbers of neutrons, resulting in different atomic masses.

Front

How do you calculate the atomic mass of an element with isotopes?

Back

The atomic mass is calculated by taking the weighted average of the masses of its isotopes, based on their relative abundances.

Front

What is the atomic mass of copper if 69.2% is copper-65 and 30.8% is copper-63?

Back

64.4 amu.

Front

What is the difference between isotopes of the same element?

Back

Isotopes differ in the number of neutrons they contain.

Front

How many neutrons does Bromine-80 have?

Back

45 neutrons.

Front

How many neutrons does Potassium-39 have?

Back

20 neutrons.

Front

What is the mass number of an isotope?

Back

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

Front

If an element has 12 protons and 14 neutrons, what is its mass number?

Back

The mass number is 26 (12 protons + 14 neutrons).

Front

What is the significance of isotopes in scientific research?

Back

Isotopes are used in various fields such as medicine, archaeology, and environmental science for dating, tracing, and imaging.

Front

Can isotopes of an element have different chemical properties?

Back

Generally, isotopes have similar chemical properties, but their physical properties can differ due to mass differences.