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What is the atomic number of sodium?

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The element Sodium has an atomic number of 11 and an average atomic mass of 22.98 which makes the mass number 23. An atomic number of 11 means this atom will have 11 protons. A mass number of 23 means 23 - 11 this atom will have 12 neutrons. read more

Sodium chloride, common salt, is a compound, and, therefore, HAS NO ATOMIC NUMBER! Explanation: We can speak the the atomic number of its constituent elements, i.e. sodium, #Z=11#, and chlorine, #Z=17#, which numbers represent the number of PROTONS, fundamental, massive positively charged nuclear particles, but this is all we can say with respect to atomic number. read more

Quora is not meant to be used for these simple questions. You might as well ask it on the Internet or look at a Periodic Table. read more

Sodium chloride or salt (NaCl) Soda ash (Na 2 CO 3) Baking soda (NaHCO 3) Sodium hydroxide or caustic soda (NaOH) Sodium nitrate or Chilean saltpeter (NaNO 3) Sodium Borate or borax (Na 2 B 4 O 7) Interesting facts: It is found free in nature. It will float on water. It will ignite spontaneously on water. It is abundant in the sun and other stars. read more

The atomic no. of SODIUM or Na is 11 as it conatins 11 protons in it which forms the basis for giving unique atomic no to every element. Remember electrons are also used to identify the atomic no. read more

We can speak the the atomic number of its constituent elements, i.e. sodium, Z=11, and chlorine, Z=17, which numbers represent the number of PROTONS, fundamental, massive positively charged nuclear particles, but this is all we can say with respect to atomic number. read more

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