30 2 · 8 · 18 · 2

Zinc, Zn, element 30

Transition metal· Period 4· Group 12· d-block

Configuration [Ar]3d¹⁰4s²

Atomic weight: 65.38Da
Phase: solid
Density: 7.134g/cm³
Melting point: 692.677K 419.53 °C
Boiling point: 1,180.15K 907 °C
Electronegativity: 1.65

Blue-white metallic element. Occurs in multiple compounds naturally. Five stable isotopes are six radioactive isotopes have been found. Chemically a reactive metal, combines with oxygen and other non-metals, reacts with dilute acids to release hydrogen. Description from mendeleev.

Back to the table

The outermost shell: the valence electronsThe inner shellsThe nucleus One bead for each electron, on the ring of its shell, counted from the nucleus out. The rings turn at their own pace; the model is Bohr's picture of the atom, which places electrons in shells but not on true orbits.

Atomic properties

5 of 5 fields have a value for zinc

Atomic weight The standard atomic weight. For an element with no stable isotope, the mass of its longest-lived isotope.: 65.38Da; Source: mendeleev
Electron configuration: [Ar]3d¹⁰4s²; Source: mendeleev
Uncertainty of the atomic weight: 0.02Da; Source: mendeleev
Electron configuration in full The electron configuration with the noble-gas core written out.: 1s²2s²2p⁶3s²3p⁶3d¹⁰4s²; Source: Worked outfrom electron configuration
Electrons in each shell Counted from the electron configuration, from the first shell outward.: 2 · 8 · 18 · 2; Source: Worked outfrom electron configuration

Screening of each subshell

Clementi's screening constants: how much of the nucleus's charge the other electrons hide from an electron in each subshell. What is left is the effective nuclear charge it feels.

Subshell	Screening σ	Effective charge Z − σ
1s	0.6755	29.3245
2s	8.172	21.828
2p	3.902	26.098
3s	13.7808	16.2192
3p	14.6307	15.3693
3d	16.1217	13.8783
4s	24.0348	5.9652