Module 16: L2 ck - Atomic Mass

Front

What is the atomic mass of an element?

Back

The average mass of the atoms of that element.

Front

What describes isotopes of the same element?

Back

Isotopes are atoms of the same element that have different numbers of neutrons.

Front

How do isotopes differ from each other?

Back

Isotopes have different masses but the same atomic number.

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

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

Back

Subtract the atomic number from the atomic mass.

Front

What is the atomic mass of hydrogen's isotope with 3 neutrons?

Back

Hydrogen has isotopes with different masses, such as Protium (1), Deuterium (2), and Tritium (3).

Front

What is an isotope?

Back

Atoms of the same element that have different numbers of neutrons.

Front

If an element has an atomic number of 8 and an atomic mass of 15, how many neutrons does it have?

Back

7 neutrons.

Front

What is the relationship between atomic mass and atomic number?

Back

Atomic mass is the sum of protons and neutrons, while atomic number is just the number of protons.

Front

What is the significance of isotopes in chemistry?

Back

Isotopes can have different physical properties and can be used in various applications, such as dating and medical imaging.