What property do elements in group 18 [or 8] most likely share?
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They are silver in color.
They are malleable.
They have low or no reactivity.
The most likely property that elements in group 18 (or 8A) share is that they have low or no reactivity. Group 18 elements, also known as noble gases, have a full outer electron shell, making them very stable and unlikely to form chemical bonds with other elements. This characteristic makes them highly unreactive under normal conditions.
The property that elements in group 18, also known as the noble gases, most likely share is that they have low or no reactivity.
The property that elements in Group 18 (or Group 8, depending on the periodic table you are using) most likely share is low or no reactivity. These elements are called noble gases, and they include helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn).
To determine this property, you can look at the periodic table and identify the group number of the elements in question. The group number refers to the vertical columns on the periodic table, and elements within the same group generally have similar properties. Group 18 (or Group 8) is located on the rightmost side of the periodic table, just before the transition metals.
By knowing that elements in this group are noble gases, you can conclude that their most significant shared property is low or no reactivity. Noble gases are characterized by having a full outer electron shell, which makes them highly stable and unreactive. They rarely form compounds with other elements and are often referred to as inert gases.
Therefore, the most likely property that elements in Group 18 (or Group 8) share is low or no reactivity.