Question

Difference between the atomic number and mass number.

Answer 1

Understanding the concept:

• The mass number of an atom is the total of its protons & neutrons, while the atomic number is the number of protons alone.
• Because the atomic number is the key to an element's identity, it is associated with a value on the periodic table.
• Only when interacting with the protium species of hydrogen, which consists of a single proton, atomic number, and atomic mass are the same.
• been discussing elements in general, remember that the atomic number doesn't ever change, but the atomic mass may change due to multiple isotopes.

Explanation of the difference between these two subatomic particles:

Atomic number	Mass number
The atomic number is the total number of protons inside an element's nucleus or a number of electrons. It represents the number of the protons in an atom's nucleus. The letter Z stands for an atomic number. The atomic number is used to categorize and identify elements. Isotopes all have the same atomic number. A digit used to identify elements in a periodical table is called an atomic number.	The atomic mass of an element is determined by the number of neutrons and protons in its nucleus. It is an average weight of an element. The letter "A' stands for atomic mass. The element's nature cannot be determined from its atomic mass. Atomic mass can be used to differentiate between different isotopes of a given element. Atomic mass is frequently measured using the atomic mass unit (AMU).