英文字典中文字典


英文字典中文字典51ZiDian.com



中文字典辞典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z       







请输入英文单字，中文词皆可：

安装中文字典英文字典查询工具!


中文字典英文字典工具:
选择颜色:
输入中英文单字

































































英文字典中文字典相关资料:


  • Zirconium - Wikipedia
    Zirconium is a chemical element; it has symbol Zr and atomic number 40 First identified in 1789, isolated in impure form in 1824, and manufactured at scale by 1925, pure zirconium is a lustrous transition metal with a greyish-white color that closely resembles hafnium and, to a lesser extent, titanium
  • Zirconium | Chemical Element, Uses, Properties | Britannica
    zirconium (Zr), chemical element, metal of Group 4 (IVb) of the periodic table, used as a structural material for nuclear reactors
  • Zirconium - Element information, properties and uses | Periodic Table
    Element Zirconium (Zr), Group 4, Atomic Number 40, d-block, Mass 91 224 Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images
  • Isotopes of zirconium - Wikipedia
    The second most stable radioisotope is 93 Zr, which has a half-life of 1 61 million years Thirty other radioisotopes have been observed from 77 Zr to 114 Zr; all have half-lives less than a day except for 95 Zr (64 032 days), 88 Zr (83 4 days), and 89 Zr (78 36 hours)
  • Zirconium Facts - What Is Zirconium? - Science Notes and Projects
    Zirconium is the element of the periodic table with atomic number 40 and element symbol Zr It is a ductile and malleable silver transition metal with high melting and boiling points
  • Zirconium | Periodic Table | Thermo Fisher Scientific - US
    Zr is a reactive metal and usually found as oxide, ZrO 2 The oxide is reduced to sub-oxides by argon ion bombardment Commonly seen as minor components in Hf-containing compounds About this element At elevated temperatures, this silvery white metal can ignite spontaneously in air
  • Zirconium | Zr (Element) - PubChem
    Zirconium is a chemical element with symbol Zr and atomic number 40 Classified as a transition metal, Zirconium is a solid at 25°C (room temperature) J C Slater, J Chem Phys, 1964, 41 (10), 3199-3205 DOI:10 1063 1 1725697
  • Zirconium Facts (Atomic Number 40 or Zr) - ThoughtCo
    Get periodic table facts on the chemical and physical properties of the element zirconium (atomic number 40 or Zr)
  • Zirconium Element Facts - chemicool. com
    Precious stones containing zirconium, such as hyacinth and zircon, have been used as decorations since ancient times Zirconium was first recognized as an element by Martin Heinrich Klaproth in 1789, in Berlin, in a sample of zircon (zirconium silicate) from Sri Lanka
  • Zirconium (Zr) - Periodic Table
    Zirconium is the 40th element in the periodic table and has a symbol of Zr and atomic number of 40 It has an atomic weight of 91 224 and a mass number of 90 Zirconium has forty protons and fifty neutrons in its nucleus, and forty electrons in five shells It is located in group four, period five and block d of the periodic table





中文字典-英文字典  2005-2009