Group 1 Alkali Metals: Reactivity, Reactions, and Properties
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5 Terms
explain why potassium is more reactive than lithium
-potassium has more shells/electrons
-the outer shell is further from the nucleus
-it has a weaker attraction from the nucleus to the outer shell
-it is easier to lose the outer shell electron
name the product of a reaction between an alkali metal and oxygen
metal oxide
explain why the group 1 elements are called alkali metals
they are metals that react with water to form alkalis
a sample of lithium is heated and burned in oxygen. give two observations seen during the reaction
a crimson flame is produced.
the lithium melts
state the typical observations when an alkali metal is added to water
-fizzing
-the alkali metal moves on the surface of the water
-the alkali metal decreases in size
-if potassium, a lilac flame is produced
