Isotopes Review

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, resulting in different mass numbers.

Front

How do you determine the name of an isotope from its nuclide symbol?

Back

The name of an isotope is derived from the element's name followed by a hyphen and its mass number (e.g., Sodium-23).

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 mass number of an isotope?

Back

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

Front

How many protons does an isotope of titanium have if its atomic number is 22?

Back

22 protons.

Front

What is the relationship between protons and electrons in a neutral atom?

Back

In a neutral atom, the number of protons equals the number of electrons.

Front

What do isotopes of the same element have in common?

Back

Isotopes of the same element have the same number of protons and electrons, but different numbers of neutrons.

Front

How many neutrons are in the isotope Carbon-14?

Back

Carbon-14 has 8 neutrons (14 mass number - 6 protons = 8 neutrons).

Front

What is the significance of the atomic number in identifying an element?

Back

The atomic number uniquely identifies an element and determines its position in the periodic table.

Front

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

Back

Number of neutrons = Mass number - Atomic number.