The order of the elements in Group 1 is: lithium, sodium, potassium, rubidium and caesium.Knowing the trend in the reactivity of Group 1 elements, predict which element you would expect to react with oxygen the most.RubidiumPotassiumSodiumLithiumCaesium

The elements in Group 1 are known as:

Lithium, sodium and potassium are all Group 1 elements. Determine which is the most reactive. LithiumSodiumPotassiumQuestion 10SavedExplain why you selected this element as the most reactive of the three. Try to use the terms trend, atomic radius and valence electron in your answer.

Select the correct answer.In the periodic table of elements, what do all of the elements in group 2 have in common? A. An atom of each element can hold up to eight electrons in its outer energy level. B. An atom of each element can hold up to six electrons in its outer energy level. C. Each element is an alkaline earth metal. D. Each element is a halogen. E. Each element is dull, brittle, and breaks easily.Reset Next

Statement - I: Along the period, the chemical reactivity of the element gradually increases from group 1 to group 18.Statement - II: The nature of oxides formed by group 1 element is basic while that of group 17 elements is acidic.

Oxygen is in group 16 on the periodic table.Select the statement that explains why other elements are grouped with oxygen (O).Other elements have similar chemical and physical properties to oxygen.Other elements have similar shape to oxygen atoms.They all have the same number of protons as oxygen.