newton desk facebook page newton desk google android app

Subscribe Your Email To Get Free All Latest Updates...

Newton desk yellow qr code To Get Better Experience of This Website, Kindly Open It On Laptop / PC / Tablet   All FlashCard Images Are In High-Resolution, Please wait For Some Seconds To Open While You Click On Image. 
Home / Newton Desk / Lawrencium Lr (Element 103) of Periodic Table
Lawrencium Lr (Element 103) of Periodic Table

Lawrencium Lr (Element 103) of Periodic Table

103 Lr (Lawrencium)

Appearance – Silvery (radioactive metal)

Mass number – 262

Atomic weight – 266.1193 g/mol

Atomic number (Z) – 103

Electrons: 103

Protons: 103

Neutrons: 159

Group – 3

Period – 7

Block – d

Element category – Actinide

Electrons per shell – K2, L8, M18, N32, O32, P8, Q3

Electron configuration – 1s22s22p63s23p63d104s24p64d105s25p64f145d106s26p65f147s27p1

Phase – Solid

Melting point – 1900 k (1627 oC)

Density – ~15.6 – 16.6 g/cm3

Half Life(s) – 36000

Lifetime – 52000

Oxidation states – 3

Electronegativity – Pauling scale 1:3

Ionization energies – 1st: 478.6 kJ/mol, 2nd: 1428 kJ/mol, 3rd: 2219.1 kJ/mol

Atomic radius – 282 pm

Crystal structure – Hexagonal close-packed

CAS Number – 22537-19-5

Naming – After Ernest Lawrence

Discovery – Lawrence Berkeley National Laboratory and Joint Institute for Nuclear Research (1961 – 1971)

Isotopes – 266Lr 262Lr 261Lr 260Lr 259Lr 256Lr 255Lr 254Lr

Uses – Lawrencium has no uses outside research

Natural abundance –  It is produced by bombarding californium with boron

#Lawrencium

More Elements FlashCards

Leave a Reply

Your email address will not be published. Required fields are marked *

*

Scroll To Top
Translate »
error: