Isotope

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 number of neutrons in an isotope?

Back

To find the number of neutrons in an isotope, subtract the number of protons (atomic number) from the atomic mass (rounded to the nearest whole number).

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

What is the significance of the atomic mass of an isotope?

Back

The atomic mass of an isotope reflects the total number of protons and neutrons in its nucleus, influencing its stability and behavior in chemical reactions.

Front

How many protons does the isotope Carbon-14 have?

Back

Carbon-14 has 6 protons.

Front

If an isotope has an atomic mass of 27 and 13 protons, how many neutrons does it have?

Back

It has 14 neutrons (27 - 13 = 14).

Front

What is the symbol for an isotope with 12 protons and 13 neutrons?

Back

The symbol is ²⁵Mg (Magnesium-25).

Front

What is the relationship between isotopes and chemical properties?

Back

Isotopes of an element generally have the same chemical properties because they have the same number of protons and electrons, but they may have different physical properties.

Front

How can isotopes be used in medicine?

Back

Isotopes can be used in medicine for diagnostic imaging, treatment of diseases, and as tracers in biological research.

Front

What is the difference between stable and unstable isotopes?

Back

Stable isotopes do not undergo radioactive decay, while unstable isotopes (radioisotopes) decay over time, emitting radiation.