Zr

Zirconium · element 40

Transition Metal · Solid at room temperature

Zirconium is a chemical element with symbol Zr and atomic number 40. The name of zirconium is taken from the name of the mineral zircon, the most important source of zirconium. The word zircon comes from the Persian word zargun زرگون, meaning "gold-colored".

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Two pieces of Zirconium, 1 cm each.
Two pieces of Zirconium, 1 cm each. - Jurii, CC BY 3.0 <https://creativecommons.org/licenses/by/3.0>, via Wikimedia Commons, source: https://images-of-elements.com/zirconium.php

Key facts

Atomic mass
91.2242 u
how heavy one atom is
Phase (room temp.)
Solid
Density
6.52 g/cm³
how tightly packed it is
Melting point
2128 K (1855 °C)
when solid turns to liquid
Boiling point
4650 K (4377 °C)
when liquid turns to gas
Period
5
its row in the periodic table
Group
4
its column in the periodic table
Block
D-block
the neighbourhood it lives in
Electronegativity
1.33
how strongly it pulls electrons
Electron configuration
[Kr] 4d2 5s2
where its electrons live
Shells
2 · 8 · 18 · 10 · 2
electrons in each layer, inside to out
Discovered by
Martin Heinrich Klaproth
who found it
Appearance
silvery white
what it looks like

Source: Wikipedia

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