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All sodium atoms have 11 protons in the nuclei of sodium Adams contains 12 neutrons and others contain 11 these different forms of sodium are called?

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Perplexed20
Isotopes

Atoms of the same element; number of protons remain the same, number of neutrons vary. Chemical properties remain the same. Atomic mass varies.

Na sodium with 11 neutrons = atomic mass of 22

With 22 neutrons the mass is 23.

Both have 11 protons in the nucleus.

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