Manganese vs Technetium

Pumili ng hanggang 3 elemento at tingnan kung paano sila nagkakaiba.

KatangianManganeseTechnetium
Atomic number 25 43
Atomic mass 54.938 98
Electronegativity 1.55 1.9
Melting point 1,519 K (1,245.8 °C) 2,430 K (2,156.8 °C)
Boiling point 2,334 K (2,060.8 °C) 4,538 K (4,264.8 °C)
Density 7.21 g/cm³ 11 g/cm³
Atomic radius 197 pm 209 pm
Ionization energy 7.434 eV 7.28 eV
Natuklasan 1774 1937
Kategorya Transition metal Transition metal
Estado sa temp. ng silid Solid Solid
Block d d
Grupo 7 7
Peryodo 4 5
Valence electron 2 2
Karaniwang karga +2, +3, +4, +7 +4, +6, +7
Electron configuration [Ar] 3d5 4s2 [Kr] 4d5 5s2

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