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For the following set of elements, choose the two that would be expected to have similar chemical...

Question:

For the following set of elements, choose the two that would be expected to have similar chemical properties: Sodium (11, Na), Silicon (14, Si), Vanadium (23, V), Caesium (55, Cs).

Answer and Explanation:


The two elements that have similar properties is sodium and caesium. This is because they are both alkali metals in group IA on the periodic table. The alkali metals have one valence electron, hence the family group IA. The Roman numeral I indicates the first family in the main group element category, which is represented with the letter A.

One valence electron means these elements give up that electron in reactions with non-metallic elements. Both sodium and caesium are highly reactive.


Learn more about this topic:

The Periodic Table: Properties of Groups and Periods

from Chemistry 101: General Chemistry

Chapter 3 / Lesson 1
331K

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