Question

1. check if each statement describes an alkali metal, an alkaline earth metal, or a transition metal.

alkaline earth metal alkali metal transition metal
has one valence electron
has two valence electrons
found in group 2
found in the d - block
high melting point
found in groups 3 - 12
includes many metals like copper, silver, and gold
produce the most vibrant colors when exposed to flame
found in group 1
most reactive, especially with water

Explanation:

• Alkali metals (Group 1) have one valence electron, are highly reactive (especially with water), and are found in group 1.
• Alkaline earth metals (Group 2) have two valence electrons and are found in group 2.
• Transition metals (Groups 3 - 12) are found in the d - block (Groups 3 - 12), include metals like copper, silver, and gold, have high melting points, and produce vibrant colors in flame tests.

Answer:

• has one valence electron: Alkali Metal
• has two valence electrons: Alkaline Earth Metal
• found in group 2: Alkaline Earth Metal
• found in the d - block: Transition Metal
• high melting point: Transition Metal
• found in groups 3 - 12: Transition Metal
• includes many metals like copper, silver, and gold: Transition Metal
• produce the most vibrant colors when exposed to flame: Transition Metal
• found in group 1: Alkali Metal
• most reactive, especially with water: Alkali Metal