https://en.wikipedia.org/wiki/Berkelium

Berkelium is a transuranic radioactive chemical element with symbol Bk and atomic number 97. It is a member of the actinide and transuranium element series.

http://www.rsc.org/periodic-table/element/97/berkelium

Element Berkelium (Bk), Group 20, Atomic Number 97, f-block, Mass [247]. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and ...

https://www.lenntech.com/periodic/elements/bk.htm

Berkelium is a radioactive metallic element that is a member of the actinide group of elements. It is silvery in colour and its chemistry has been investigated to a ...

https://www.chemicool.com/elements/berkelium.html

Oct 14, 2012 ... Bk. (247). The chemical element berkelium is classed as an actinide metal. It was discovered in 1949 by Stanley Thompson, Albert Ghiorso and ...

https://www.thoughtco.com/berkelium-element-facts-bk-3863126

Oct 2, 2018 ... Get facts about element 97, berkelium. Learn about its history, atomic data, and Bk properties.

https://education.jlab.org/itselemental/ele097.html

The Element Berkelium - Basic Physical and Historical Information. ... The Element Berkelium. [Click for Isotope Data]. 97. Bk. Berkelium. 247. Atomic Number: ...

http://www.chemicalelements.com/elements/bk.html

Isotope, Half Life. Bk-242, 7.0 minutes. Bk-244, 4.4 hours. Bk-245, 4.9 days. Bk- 247, 1400.0 years. Bk-248, 23.7 hours. Bk-249, 320.0 days. Bk-250, 3.22 hours.

https://www.webelements.com/berkelium/

This image shows the location of berkelium on the periodic table. 97Bk. Available ... Density of the chemical elements on a miniature periodic table spark table ...

https://periodic.lanl.gov/97.shtml

This activity was assigned to an isotope of element 97 with mass number 243. ... In 1958 about 0.6 micrograms of 249Bk with a half-life of 330 days was ...

https://www.britannica.com/science/berkelium

Apr 12, 2019 ... Berkelium: Berkelium (Bk), synthetic chemical element of the actinoid series of the periodic table, atomic number 97. Not occurring in nature, ...