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Which of the following elements belongs to Group 1 (Alkali Metals)?
Why are most alkali metals found to float on the surface of water?
What changes occur to the melting points of elements as you go down Group 1 from Li to Fr?
How many valence electrons do all atoms of elements in Group 1 have?
As you move down Group 1, the tendency of atoms to donate electrons increases. What is the term for this property?
Why does the reactivity of alkali metals increase as you go down a group?
What product is formed when an alkali metal (M) reacts with water?
Arrange the following elements in order of increasing intensity of reaction with water.
What observations can be seen when a piece of red litmus paper is placed in a solution resulting from the reaction of sodium with water?
What product is formed when potassium burns in chlorine gas?