Properties

CAS Number7429-92-7
PubChem CIDna
Atomic Radius-
Atomic Volume28.5
परमाणु भार[252]
ब्लॉकf
क्वथनांक-
Bulk Modulus
श्रेणीऐक्टिनाइड्स
Crystal Structure
रंग
संयोजी त्रिज्या-
घनत्व8.84
Electrical Resistivity
इलेक्ट्रॉन कॉन्फिगरेशन[Rn] 5f11 7s2
इलेक्ट्रॉन प्रति शेल2, 8, 18, 32, 29, 8, 2
इलेक्ट्रोनेगेटिविटी1.3
Electrons99
समूहna
विलय ऊष्माna
वाष्पीकरण ऊष्माna
आयनीकरण ऊर्जाएं6.42
Magnetic Ordering
Magnetic Susceptibility
भार[252]
Mass Number99
गलनांक860
नामआइन्स्टाइनियम
न्यूट्रॉन153
परमाणु संख्या252
ऑक्सीकरण स्थितियां2, 3
आवर्त7
अवस्थाठोस
Poisson Ratio
प्रोटॉन99
Shear Modulus
विशिष्ट ऊष्मा क्षमता-
चिह्नEs
तापीय चालकता0.1
Van der Waals radius
Young's Modulus
प्राकृतिक प्रचुरता
Abundance in Earth's crustna
Abundance in Universena
Es आइन्स्टाइनियम 99 (252) 7 f 99 [Rn] 5f11 7s2 2 8 18 32 29 8 2 None Unknown 1.3 {"1":"619"} 619 3 10.0 1 1.2922 y 1.865y AlphaEmission Solid, Actinide, Radioactive, Synthetic ine-STINE-i-em Synthetic radioactive metal. It has no significant commercial applications. Made by bombarding uranium with neutrons. -G_4nJLNXA0 Einsteinium
Metallic lead beads dating back to 6400 BC have been found in Çatalhöyük in modern-day Turkey.

The Romans also used lead in molten form to secure iron pins that held together large limestone blocks in certain monumental buildings.

In alchemy, lead was thought to be the oldest metal and was associated with the planet Saturn. From the Latin word plumbum 99 1952 Workers at Argonne, Los Alamos, USA, and the University of California at Berkeley, USA. USA Named after "Albert Einstein"

Isotopes of Lead

Standard Atomic Weight

Stable Isotopes

Unstable Isotopes

240Es 241Es 242Es 243Es 244Es 245Es 246Es 247Es 248Es 249Es 250Es 251Es 252Es 253Es 254Es 255Es 256Es 257Es 258Es

Lead and its compounds are poisonous
Pencil leads in wooden pencils have never been made from lead
Large quantities of lead, both as the metal and as the dioxide, are used in storage batteries.

Lead is used as electrodes in the process of electrolysis.

It is added to brass to reduce machine tool wear.

Lead, in either pure form or alloyed with tin, or antimony is the traditional material for bullets and shot in firearms use.