home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Otherware
/
Otherware_1_SB_Development.iso
/
mac
/
misc
/
chemistr
/
chem101.sit
/
Chem 101
/
card_40120.txt
< prev
next >
Wrap
Text File
|
1989-08-27
|
963b
|
40 lines
-- card: 40120 from stack: in
-- bmap block id: 0
-- flags: 0000
-- background id: 14320
-- name: Es
-- part contents for background part 14
----- text -----
Es
-- part contents for background part 22
----- text -----
Einsteinium
-- part contents for background part 15
----- text -----
99
-- part contents for background part 17
----- text -----
(252)
-- part contents for background part 16
----- text -----
(after Albert Einstein) Identified by Ghiorso at Berkeley in 1952 in debris from the
first "hydrogen" bomb explosion in the Pacific Ocean in November 1952. Es-254 has the longest half-life of 276 days.
-- part contents for background part 23
----- text -----
rare earth metal, radioactive, 11 isotopes
-- part contents for background part 26
----- text -----
Electron Configuration:
1s 2s 2p 3s 3p 3d 4s 4p 4d 4f 5s 5p 5d 5f 6s 6p 6d 6f 7s
2 2 6 2 6 10 2 6 10 14 2 6 10 11 2 6 2