A

Definition : Mass Number
Category : Academic & Science » Chemistry
Country/Region : Worldwide Worldwide
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What does A mean?

Mass Number (A) or Nucleon Number, is the total number of protons and neutrons in an atomic nucleus.

13 more results for A

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Worldwide A Ampere
Academic & Science
>>
Units
Worldwide a atto
Academic & Science
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Units
Worldwide A symbol for Argon, until 1957
Academic & Science
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Chemistry
Worldwide A Adenine
Medical
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Biochemistry
Worldwide A Blood Type A
Medical
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Anatomy & Physiology
Worldwide A Address
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Internet
Worldwide A Auto start-stop
Technology
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Automotive
India A Adult
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Movies & Film
Worldwide A Angstrom
Academic & Science
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Units
Worldwide A Vitamin A
Medical
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Biochemistry
Worldwide A Type A (Battery Size)
Academic & Science
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Electronics
United States A Agilent Technologies
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NYSE Symbols
Worldwide A Helmholtz Energy
Academic & Science
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Physics

Frequently Asked Questions

What is the full form of A in Nuclear Chemistry?

The full form of A is Mass Number

What are the full forms of A in Academic & Science?

Ampere | atto | symbol for Argon, until 1957 | Mass Number | Angstrom | Type A (Battery Size) | Helmholtz Energy

What are the full forms of A in Worldwide?

Ampere | atto | symbol for Argon, until 1957 | Adenine | Blood Type A | Address | Auto start-stop | Mass Number | Angstrom | Vitamin A | Type A (Battery Size) | Helmholtz Energy

Translation

Translate Mass Number into other languages

Citations Formatting rules vary by edition. Please verify against your required style manual.

APA Style

FullForms. (2026). A. FullForms.com. https://fullforms.com/A/full/9261

Chicago Style

FullForms. "A." Accessed June 4, 2026. https://fullforms.com/A/full/9261.

Harvard Style

FullForms (2026) 'A', FullForms.com. Available at: https://fullforms.com/A/full/9261 (Accessed: 04 June 2026).

MLA Style

"A." FullForms.com, 2026, https://fullforms.com/A/full/9261. Accessed 04 Jun. 2026.