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BY: ASTI RAHAYU SLAMET. ALKALI METALS. ALKALI ELEMETS. WHAT DO YOU THINK ABOUT IT???. CONTENT OF MATTER. What do you know about characters alkali metals???. Alkali metals is the most reactive metal. The compounds alkali metal ions and compounds are generally classified soluble in water. - PowerPoint PPT Presentation
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ALKALI METAL
S
BY: ASTI RAHAYU SLAMET
ALKALI ELEMETS
WHAT DO YOU THINK ABOUT IT???
CONTENT OF MATTER
ALKALI METALS
What do you know about characters alkali metals???
Alkali metals is the most reactive metal
The compounds alkali metal ions and compounds are generally classified soluble in water.
Reactivity of alkali metals
ANIMASI
Comparison the character of alkali metal and alkaline earthTO THE RIGHT (ONE PERIOD) Increases the melting
point Increasing boiling point Increased destiny Reduced atomic radius Reduced volume of the
atom Reduced base
UNDER (ONE GROUP) Increased speed Increasing atomic
radius Increased reductant Reduced boiling point Reduced melting point
REACTION OF ALKALI METALSWith Oxigen
With Halogen
With Hydrogen
With water
With dilute acid
With ammonia gas
Alkali metals abudance
Alkali manufacture (making natrium)
ANIMASIANIMASI
HERE IS THE REACTION
REACTION: NaCl(l) → 2Na+(l) + 2Cl- (l)CATHODE : 2Na+ (l) + 2e → 2Na (l)ANODE : 2Cr (l) → Cl2(g) + 2e
Function of Alkali metals
Useful of lithiumLithium batteries used to make
Sodium cloride is used fortable salt
KNO3 used as an essential
componenet of explosive
Cont’d
For fertilizer and plant (KCl & K2SO4)use as an essential component of explosives
TASK
Find the other functions of the alkali metals !!!
Simulations of alkali metal
ANIMASI
Cont’d
VIDEO
Alkali metal is more reactive than the alkaline earthTRUE FALSE
EXERCISES
Cont’d
In the manufacture of sodium metal, molten NaCl is mixed with compounds CaCl2 objective that sodium metal produced the more
TRUE FALSE
TEST
1. Between the base below the greatest solubility….
A. Mg(OH)2 B. Ba(OH)2 C. Be(OH)2 D. Sr(OH)2 E. Ca(OH)2
2. If the compound KNO3 was burnt on the fire, the flame color of potassium Is…..
a. Purpleb. Redc. Blued. Green e. Yellow
TOTAL TRUE :TOTAL FALSE :
TEST RESULT
THANK YOU …….
PROFILE :ASTI RAHAYU SLAMET (0900710)