berkeliumn.

Brit.

/ˈbəːklɪəm/,

/bəːˈkɛlɪəm/,

/bəːˈkiːlɪəm/, U.S.

/ˈbərkliəm/,

/bərˈkɛliəm/

Origin: A borrowing from Latin. Etymon: Latin berkelium.

Etymology: < scientific Latin berkelium (see quot. 1950¹) < Berkeley , the name of a city in California, where the element was first isolated and identified + scientific Latin -ium -ium suffix.

Chemistry.

A metallic radioactive transuranic element, atomic number 97, produced artificially. Symbol Bk.Berkelium was first isolated and identified in December 1949 using the cyclotron at the University of California, Berkeley.

ΘΚΠ

the world > matter > chemistry > elements and compounds > metals > specific elements > berkelium > [noun]

berkelium1950

Bk1950

1950 Idaho State Jrnl. 17 Jan. 1/6 The newest element, which tentatively has been named Berkelium (Bk), in honor of the city where the discovery was made.

1950 S. G. Thompson et al. in Physical Rev. 77 838/2 It is suggested that element 97 be given the name berkelium (symbol Bk), after the city of Berkeley.

2014 independent.co.uk (Nexis) 9 July Berkelium, for example, is produced in only very small amounts as a by-product of nuclear reactors and has a half-life of 330 days.

This entry has been updated (OED Third Edition, June 2019; most recently modified version published online December 2021).

单词	berkelium
释义	berkeliumn. Brit. /ˈbəːklɪəm/, /bəːˈkɛlɪəm/, /bəːˈkiːlɪəm/, U.S. /ˈbərkliəm/, /bərˈkɛliəm/ Origin: A borrowing from Latin. Etymon: Latin berkelium. Etymology: < scientific Latin berkelium (see quot. 1950¹) < Berkeley , the name of a city in California, where the element was first isolated and identified + scientific Latin -ium -ium suffix. Chemistry. A metallic radioactive transuranic element, atomic number 97, produced artificially. Symbol Bk.Berkelium was first isolated and identified in December 1949 using the cyclotron at the University of California, Berkeley. ΘΚΠ the world > matter > chemistry > elements and compounds > metals > specific elements > berkelium > [noun] berkelium1950 Bk1950 1950 Idaho State Jrnl. 17 Jan. 1/6 The newest element, which tentatively has been named Berkelium (Bk), in honor of the city where the discovery was made. 1950 S. G. Thompson et al. in Physical Rev. 77 838/2 It is suggested that element 97 be given the name berkelium (symbol Bk), after the city of Berkeley. 2014 independent.co.uk (Nexis) 9 July Berkelium, for example, is produced in only very small amounts as a by-product of nuclear reactors and has a half-life of 330 days. This entry has been updated (OED Third Edition, June 2019; most recently modified version published online December 2021). < n.1950
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