The electronic configuration for the Ni atom is (Ar)(3d) 10 (4s) 2, and the atomic radius is 0.124 nm. At room temperature the crystal structure is face-centered-cubic with a basis of one Ni atom. The ...
An element's atomic number defines it. An element with 17 protons will always be chlorine. However an element's mass numbers can vary, which means that it can have different numbers of neutrons ...
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