Which elements on the periodic table are the least reactive? (1 point)Responsesthe group with carbon at the topthe group with carbon at the topthe group with helium at the topthe group with helium at the topthe group with fluorine at the topthe group with fluorine at the topthe group with hydrogen at the top
The group with helium at the top is the least reactive on the periodic table.
The group with helium at the top is the least reactive on the periodic table.
The least reactive elements on the periodic table are found in the group with helium at the top, also known as Group 18 or the noble gases. These elements include helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn).
To identify the least reactive elements on the periodic table, you need to understand the concept of reactivity. Reactivity refers to the tendency of an element to undergo a chemical reaction. Elements on the left side of the periodic table tend to be more reactive, while elements on the right side tend to be less reactive.
The noble gases, found in Group 18 on the periodic table, are generally the least reactive because they have a complete outer electron shell. This complete outer electron shell gives them a stable electron configuration and makes them relatively unreactive with other elements. As a result, noble gases are often referred to as inert gases.
To find the least reactive elements, you can examine the periodic table and look for the elements in Group 18, or simply remember that helium and the other noble gases are the least reactive elements.