cov khoom siv

Kev Cai Hlau Cesium (Cs) cov ntaub ntawv

khoom hom	Cesium
cim	Cs
Atomic Luj	132.91
Cov lej Atomic	55
Melting Point (°C)	28.5
Boiling Point (°C)	705
Theoretical ntom ntom (g / cc)	1.873

Nug

Txheej txheem cej luam

Cesium (Cs) General Information:

Silvery dawb malleable hlau. txheeb ze ntom ntom 1.892 (18 ℃). Melting point 28.44 ℃. Kub taw tes 671 ℃. Nws oxidizes sai heev nyob rau hauv cov huab cua noo thiab muaj peev xwm spontaneously ignite. Hardness 0.2 Mohs. Reacts nrog dej kom tso H2, uas yog soluble hauv kua ammonia. Nws yog cov hlau fusible tshaj plaws tom qab mercury. Cesium muaj cov khoom zoo sib xws rau cov poov tshuaj, tab sis muaj ntau dua li cov poov tshuaj (feem ntau reactive ntawm alkali hlau). Nws ignites ntawm kev sib cuag nrog huab cua thiab ua ib qho kev tshwm sim tawg thaum tov nrog organic teeb meem. Reacts hnyav nrog dej los yog acids kom tso H2 thiab hlawv. Ua nruj ua tsiv thiab qee zaum tawg

Cesium Element Cube