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Nearly all sodium found in nature has a mass number of 23, so it is 23Na. There are traces in nature of 22Na, which is radioactive and has a half life of 2.6 years. In addition, there are 20 known synthetic isotopes of sodium (two are metastable and have the same mass numbers as two others), with mass numbers ranging from 18 to 37.

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13y ago
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9y ago

Sodium is a metal element. Atomic Mass of it is 23.

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9y ago

Sodium is a metal element. Atomic mass of it is 23.

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15y ago

23, or 22.98976928 if you want be be super-accurate

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12y ago

Hydrogen H Helium He Lithium Li Beryllium Be Boron B Carbon C Nitrogen N Oxygen O Flourine ......... Neon N Sodium NaMagnesium Mg

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14y ago

The most common isotope (the one displayed on the Periodic Table of Elements) has an atomic weight of 22.99 with a density of 968 kilograms per cubic meter.

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9y ago

Sodium is a metal element. Mass number of it is 23.

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15y ago

the mass number is 11

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14y ago

23

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10y ago

23.

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Q: What is the atomic mass number for Sodium?
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Related questions

What is the mass number and atomic number of sodium?

Sodium (Na) has atomic number 11 and Atomic Mass of 22.99 g/mol


What is the atomic number and atomic mass of Sodium?

Sodium (Na) has atomic number 11 and atomic mass of 22.99 g/mol


What is the explanation of the atomic mass of Sodium?

Sodium is a meta element. Atomic mass of it is 23. Atomic number of it is 11.


What is the atomic mass number of sodium?

Sodium is a meta element. Atomic mass of it is 23.


What is the atomic number and the mass number of an element with 20 atomic number and 23 mass number?

Sodium is a metal element. Atomic mass number of it is 23.


What is the mass number of a sodium atom?

Sodium is a metal element. Atomic mass number of it is 23.


Which notation represents an atom of sodium with an atomic number of 11 and mass number of 24?

An atom of sodium with an atomic number of 11 and mass number of 24 is 2411Na.


Element with the atomic number 23?

Vanadium, Symbol V, is the element with atomic number 23.You can find the atomic number of an element from a periodic table as the one you'll find if you follow the link below. The number to the top of an element's symbol is the atomic number (that is , the number of protons in the nucleus.)http://www.electrical-res.com/EX/10-17-19/periodic_table_of_elements.jpg


What is the Atomic number of Sodium-23?

Mass number is the number of protons and neutrons in the nucleus of an atom. Atomic number on the periodic table is the number of protons in the nucleus of an atom. mass number - atomic number = number of neutrons The atomic number of sodium is 11. Specified mass number is 23. Therefore, 23-11 = 12 neutrons


What is the atomic mass of sodium?

Sodium is a meta element. Atomic mass of it is 23.


What is the atomic mass for sodium?

Sodium's atomic mass is 22.98977


What is an atomic mass of sodium?

The Relative Atomic Mass of Sodium is 23.