Lawrencium – Periodic Table [Element Information & More]

lawrencium element periodic table

Lawrencium element (Lr) is in period 7 of a periodic table. Lawrencium is in the f-block and it is classified as an actinide on the periodic table.

There is a lot more information related to lawrencium which is mentioned in the Information Table given below.

So let’s dive right into it!

Table of contents

Lawrencium Element (Information Table)

The important data related to lawrencium element is given in the table below.

Atomic number of lawrencium103
Symbol of lawrenciumLr
Atomic mass of lawrencium (most stable isotope)266 u
Protons, Neutrons & Electrons in lawrenciumProtons: 103, Neutrons: 159, Electrons: 103
State of lawrencium (at STP)Solid
Period number of lawrencium in periodic table7
Block of lawrencium in periodic tablef-block
Category of lawrenciumInner transition metals
Bohr model or Electrons per shell or Electrons arrangement in lawrencium2, 8, 18, 32, 32, 9, 2
Electron configuration of lawrencium[Rn] 5f14 7s2 7p1
Orbital diagram of lawrenciumorbital diagram of lawrencium
Electronegativity of lawrencium (on pauling scale)1.3
Density of lawrencium (predicted)14.4 g/cm3
Main isotope of lawrencium262Lr
Melting point of lawrencium (predicted)1900 K or 1627 °C or 2961 °F
Crystal structure of lawrencium (predicted)Hexagonal Close Packed (HCP)

Also see: Interactive Periodic Table (It has rotating bohr models as well as many other details of all the 118 elements in a single periodic table).

Lawrencium element in Periodic table

The Lawrencium element (Lr) has the atomic number 103 and is located in period 7. Lawrencium is a metal and it is classified as an actinide group element.

Click on above elements in the periodic table to see their information.

Facts about lawrencium

Here are a few interesting facts about the lawrencium element.

  1. Lawrencium was given its name to honor the chemist Ernst Lawrence.
  2. Lawrencium is not available naturally and it is an artificially made element.
  3. Lawrencium has 14 isotopes and all these isotopes are radioactive in nature.
  4. 266Lr is the most stable isotope of lawrencium and it has a half life of 10 hours.

Properties of lawrencium

Here is a list of some physical properties and chemical properties of lawrencium.

  • Lawrencium is harmful as well as a radioactive element.
  • The predicted density of lawrencium is 14.4 g/cm3 and its most stable isotope has an atomic mass 266 amu.
  • The crystal structure of lawrencium is predicted as HCP.
  • The melting point of lawrencium is 1900 K (predicted).
  • The most common oxidation states of lawrencium are +3 and +2.

Uses of lawrencium

Lawrencium has no commercial uses due to its radioactive nature and scarcity, but it is generally used for research work in chemistry.

External resources:

  1. Lawrencium – Element information, properties and uses | Periodic Table. (n.d.). Lawrencium – Element Information, Properties and Uses | Periodic Table.
  2. Lawrencium – Wikipedia. (2020, March 15). Lawrencium – Wikipedia.
  3. P. (n.d.). Lawrencium | Lr (Element) – PubChem. Lawrencium | Lr (Element) – PubChem.
  4. It’s Elemental – The Element Lawrencium. (n.d.). It’s Elemental – the Element Lawrencium.
  5. Lawrencium | CCDC. (n.d.). Lawrencium | CCDC.
  6. Periodic Table of Elements: Los Alamos National Laboratory. (n.d.). Periodic Table of Elements: Los Alamos National Laboratory.
  7. Nagame, Y. (2016, February 19). Lawrencium’s place at the table. Nature Chemistry, 8(3), 282–282.
  8. Henderson, R. A. (2018, July 5). Chemical and nuclear properties of lawrencium (element 103) and hahnium (element 105). Chemical and Nuclear Properties of Lawrencium (Element 103) and Hahnium (Element 105) – UNT Digital Library.
  9. Lawrencium experiment could shake up periodic table. (2015, April 8). Lawrencium Experiment Could Shake up Periodic Table | Research | Chemistry World.
  10. Haynes, W. M. (Ed.). (2014, June 4). CRC Handbook of Chemistry and Physics.
  11. Kaye, G W.C., & Laby, T H. Tables of physical and chemical constants. 15th Edition. United States.
  12. Sansonetti, J. E., & Martin, W. C. (2005, December). Handbook of Basic Atomic Spectroscopic Data. Journal of Physical and Chemical Reference Data, 34(4), 1559–2259.
  13. Bondi, A. (1964, March). van der Waals Volumes and Radii. The Journal of Physical Chemistry, 68(3), 441–451.

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