Question

A sodium atom contains 11 electron.what is the atomic number of sodium?
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Answer 1

Answer:

Atomic number for sodium is 11. The mass number is the sum of the neutrons and protons in an atom. Even 11 protons + 12 neutrons= 23. The Atomic number is simply the proton number as well as the atomic number is always seen at the bottom left corner in a element of a periodic table.

Answer 2

Atomic number for sodium is 11. The mass number is the sum of the neutrons and protons in an atom. Even 11 protons + 12 neutrons= 23. The Atomic number is simply the proton number as well as the atomic number is always seen at the bottom left corner in a element of a periodic table.