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Cobolt's atomic number is 24.It is in d block.
cobolt is a 3d element. we use it for get gama rays.
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Protons are represented by the atomic number of an element. The number of protons is also the number of electrons. The number of protons is also represented in re Atomic Mass, which is the number of protons and the number of neutrons combined.
The number of protons.
Number of protons
The number of protons in an atom's nucleus determines its chemical identity.
The number of protons is identical to the number of electrons when an atom is in a neutral state.
The atomic number is equal to the number of protons in the nucleus and in a neutral atom will also equal the number of electrons.
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atomic number is the number of protons
The number of protons is the atomic number.