Copper (Cu). Diagram of the nuclear composition,electron configuration,chemical data,and valence orbitals of an atom of copper-64 (atomic number: 29),an isotope of this element. The nucleus consists of 29 protons (red) and 35 neutrons (orange). 29 electrons (white) successively occupy available electron shells (rings). Copper is a transition metal in group 11,period 4,and the d-block of the periodic table. It has a melting point of 1084 degrees Celsius. The trends across the transition metals are due to electrons filling an inner d-subshell (here,within the 3rd ring),shielding the outer (valence) electrons from the increasing nuclear charge | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Clarivan, Carlos |
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