Best Answer

Mass number in chemistry is the number of nucleons in the nucleus. Nucleon is the common name for proton and neutron. In case of Sodium atom the mass number is 23. If it gets changed by adding one more neutron then it is an isotope which is used in medical field as a radio isotope to study about the blood flow.

User Avatar

Wiki User

12y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: What is the definition of mass numver is chemistry?
Write your answer...
Still have questions?
magnify glass
Related questions

How do you spell numver 8?


Definition of heating in chemistry?

Heating in chemistry refers to the application of energy in the form of heat to a substance to increase its temperature. This can lead to various outcomes such as accelerating chemical reactions, changing the physical state of a substance, or driving off volatile components. Heating is a common technique used in laboratories to facilitate processes like distillation, evaporation, and synthesis of new compounds.

Definition of 3 laws of chemistry? of conservation of mass 2. Law of definete proportion 3. Law of Multiple proportion.

What is definition of chemistry eas and simple?

The definition of chemistry easy is the study of elements, laws of combination and behavior. The definition of simple is having only one thing or element to do.

What is the scientific definition of chemistry revision?

The scientific definition of chemistry revision is when older chemistry theory is updated to reflect the current theory of chemistry. It is when a scientific formula has to be updated because new information has been found out.

What is the chemistry definition for law?


Definition of equivalent mass?

Equivalent mass is a concept used in chemistry to calculate the mass of a substance that can react or combine with one mole of hydrogen ions or exchangeable ions. It is often used in acid-base and redox reactions to determine the equivalent weight of a substance.

What is a composite numver that is divisible by both 2 and 3?

Any multiple of 6

What is the formula for density from mass?


What law relates to chemistry?

Conservation of mass

What has the author R A W Johnstone written?

R. A. W. Johnstone has written: 'Mass Spectrometry' 'Mass spectrometry for organic chemists' -- subject(s): Chemistry, Organic, Mass spectrometry, Organic Chemistry

Definition of aatomic mass?

not exact but the mass of an atom