Isotopes

Front

What are isotopes?

Back

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

Front

How do you determine the number of neutrons in an isotope?

Back

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

Front

What is the mass number in an isotope symbol?

Back

The mass number is the total number of protons and neutrons in the nucleus of an atom, typically represented in the upper left corner of the isotope symbol.

Front

How many protons does an atom of Titanium-22 have?

Back

Titanium-22 has 22 protons.

Front

If an element has an atomic number of 35, how many neutrons does the isotope with a mass number of 77 have?

Back

The number of neutrons is 42 (77 - 35 = 42).

Front

What is the significance of the atomic number in isotopes?

Back

The atomic number determines the identity of the element and is equal to the number of protons in the nucleus.

Front

Which two isotopes of the same element can be represented by the symbols I. 77/35X and IV. 81/35X?

Back

I and IV represent isotopes of the same element because they have the same atomic number (35) but different mass numbers (77 and 81).

Front

What is the relationship between isotopes and atomic mass?

Back

Isotopes of an element contribute to the average atomic mass of that element, which is calculated based on the relative abundances of each isotope.

Front

How can isotopes be used in medical applications?

Back

Isotopes can be used in medical applications such as imaging and treatment, for example, radioactive isotopes are used in cancer therapy.

Front

What is a common example of isotopes in nature?

Back

A common example of isotopes in nature is Carbon-12 and Carbon-14, which are both isotopes of carbon.