By Rango Rangel

Chater 7 Extending the Table, Expnding the Cold War

Chapter 7 Summary

Chapter 7 is about what elements were discovered during World War 2 and the Cold War. It talks about the two guys that put the most elements on the periodic table, Glenn Seaborg and Al Ghiorso, and what they did to get those elements made. It also talks about how Soviet Union scientists were treated under the rule of Vladimir Lenin and Joseph Stalin. Georgy Flyorov won Stalin's loyalty when he warned Stalin of the possibility of a atomic bomb being built in the United States. Stalin awarded him of his very own secluded laboratory a few years afterwards for his loyalty The last story is about how Victor Ninov hijacked the computer data and faked the discover of the 118th element.

F:Fluorine

Atomic Number:9

Atomic mass:18.998

Group/period:2/17

Electron Configuration:1s2 2s2 2p5

Classified as a Halogen

Where it's found-It is found in China, Mexico, and Western Europe

Uses-used for plasma etching in semiconductor manufacturing, flat panels display production and MEMs fabrication

It's also used for producing uranium. It Strengthens teeth and bones.

Discovery-Discovered by French chemist Henri Moissan in 1886

Unique Characteristics: chemically reactive, most reactive element,Hydrogen Fluorides released into the air by combustion

(Enevoldsen(n.d.))

(Water Treatment Solutions. (n.d.))

Bk:Berkelium

Atomic Number:97

Atomic mass:247

Group/period: Actinide/7

Electron Configuration:

1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 dp6 6s2 4f14 5d10 6p6 7s2 5f9

Classified as Transition metal.

Where it's found-Doesn't occur in naturally on Earth.

Uses-No uses of Berkelium

Discovery-Discovered by G. T. Seaborg, Albert Ghiorso in 1949

Named after University of Berkeley, California

Unique Characteristics- All 10 Berkelium isotopes are radioactive, long life

(Enevoldsen(n.d.))

(Water Treatment Solutions. (n.d.))

Cf:Californium

Atomic Number:98

Atomic mass:251

Group/period: Actinide/7

Electron Configuration: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 7s2 5f10

Classified as Transition Metal.

Where it's found-Doesn't occur naturally on Earth

Uses-It is used in portable metal detectors

Discovery-Discovered G. T. Seaborg in 1950

Named after California

Unique Characteristics: Radioactive, Californium 3 is the only ion stable in aqueous solution

(Enevoldsen(n.d.))

(Water Treatment Solutions. (n.d.))

Md:Mendelevium

Atomic Number:101

Atomic mass:258

Group/period: Actinide/7

Electron Configuration: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 7s2 5f13

Classified as Transition Metal and it is a Transferium element

Where it's found-Doesn't exist in nature

Uses-No Uses

Discovery-Discovered by G.T. Seaborg in 1955

Named after Dimitri Mendeleyev

Unique Characteristics: Unstable nuclei

(Enevoldsen(n.d.)

(Water Treatment Solutions. (n.d.))

No:Nobelium

Atomic Number:102

Atomic mass:259

Group/period: Actinide/7

Electron Configuration:1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 7s2 5f14

Classified as Transition Metal

Where it's found-Doesn't occur naturally on Earth

Uses-No Uses

Discovery-Discovered by Nobel Institute for Physics in 1957

Named after Alfred Nobel, founder of the Nobel Prizes

Unique Characteristics: half life is 58 minutes

(Enevoldsen(n.d.))

(Water Treatment Solutions. (n.d.))

Lr:Lawrencium

Atomic Number:103

Atomic mass:262

Group/period: Actinide/7

Electron Configuration:1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 7s2 5f14 6d1

Classified as Transition Metal

Where it's found-Doesn't exist in nature

Uses-No uses

Discovery-Discovered by Albert Ghiorso in 1961

Named after Ernest O. Lawrence

Unique Characteristics: unstable nuclei

(Enevoldsen(n.d.))

(Water Treatment Solutions. (n.d.))

All of these elements are important to our world because they have shaped history. They also have changed lives since their discovery. They have also formed the world that we live in today. They are important to the book because they are used to make other elements.

Cites

Water Treatment Solutions. (n.d.). Retrieved from

http://www.lenntech.com/periodic/elements/no.htm


Water Treatment Solutions. (n.d.). Retrieved from

http://www.lenntech.com/periodic/elements/lr.htm


Water Treatment Solutions. (n.d.). Retrieved from

http://www.lenntech.com/periodic/elements/md.htm


Water Treatment Solutions. (n.d.). Retrieved from http://www.lenntech.com/periodic/elements/cf.htm


Water Treatment Solutions. (n.d.). Retrieved from http://www.lenntech.com/periodic/elements/f.htm


Water Treatment Solutions. (n.d.). Retrieved from http://www.lenntech.com/periodic/elements/bk.htm


Enevoldsen, K. (n.d.). The Elements — Quick Descriptions, Uses and Occurrences. Retrieved from http://elements.wlonk.com/ElementUses.htm