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a.beryllium
b.cesium
c.calcium
d.barium

PLEASE HELP?!?!

2007-12-30 08:11:58 · 5 answers · asked by Anonymous in Science & Mathematics Chemistry

is it cesium? (Ce)

http://www.corrosionsource.com/handbook/periodic/periodic_table.gif

2007-12-30 08:14:20 · update #1

i mean (Cs)

2007-12-30 08:19:11 · update #2

5 answers

Cesium (Cs) is correct! It is an alkali metal (from group one of the table of elements)

2007-12-30 08:16:57 · answer #1 · answered by ¿ /\/ 馬 ? 7 · 1 0

The alkali earths are the elements in group II (second column) of the periodic table. The alkali metals are those in group I (first column).

Beryllium, calcium and barium are all Group II elements (alkali earths). Cesium is the odd man out, belonging to Group I (alkali metals).

2007-12-30 16:20:46 · answer #2 · answered by Gregg H 4 · 0 0

Cesium is an ALKALI metal, not an alkaline earth metal...

The answer is C

2007-12-30 17:31:44 · answer #3 · answered by Bri the Pilot 3 · 0 2

Cesium is the answer.

2007-12-30 16:43:36 · answer #4 · answered by C63AMG 5 · 0 0

a.beryllium-group 2 - WRONG!

b.cesium-group 1 -CORRECT!!

c.calcium-group 2- WRONG!

d.barium-group 2 - WRONG!

p/s:group 2 is also known as Alkali Earth Metal.

;)

2007-12-30 19:31:03 · answer #5 · answered by Fian 4 · 0 0

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