Which Element Is Most Reactive: F, Cl, Or Br?

Which Element Is Most Reactive: F, Cl, Or Br?

Pick Out The Chemically Most Reactive Elements From The Given Triads. Li,Na,K And F,Cl,Br | 10 …

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What Is The Reactivity Series Of F Cl Br?

The reactivity series of the halogens (F, Cl, Br, and I) is determined by various factors. Among these factors, one crucial consideration is the electron gain enthalpy, which measures the energy change when an atom gains an electron. While fluorine (F) has a less negative electron gain enthalpy compared to chlorine (Cl), it is actually the most reactive halogen in the group. This might seem counterintuitive, but it can be explained by considering another important factor: bond dissociation energy. Fluorine has a relatively low bond dissociation energy, meaning its diatomic molecules (F2) break apart more easily. As a result, fluorine exhibits higher reactivity than chlorine. In summary, the reactivity order among group 17 elements can be arranged as follows, from most to least reactive: F > Cl > Br > I. This ranking takes into account both electron gain enthalpy and bond dissociation energy, providing a more comprehensive understanding of the topic.

Is Fluorine More Reactive Than Bromine?

Is fluorine more reactive than bromine? When comparing the reactivity of halogens, a group of elements that includes fluorine, chlorine, bromine, and iodine, it becomes evident that fluorine stands out as the most reactive among them. This fact highlights the notable chemical behavior of fluorine within this group. As of the information available up to September 6, 2019, fluorine’s exceptional reactivity is a well-established characteristic.

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Pick out the chemically most reactive elements from the given triads. Li,Na,K and F,Cl,Br  | 10 ...
Pick out the chemically most reactive elements from the given triads. Li,Na,K and F,Cl,Br | 10 …

(ii) Out of F, Cl and Br, Fluorine is the most reactive because the chemical reactivity of non-metals decreases on going down in a group of the periodic table as moving down in a group of non-metals, the size of the atoms goes on increasing.The electron gain enthalpy of F is less negative than Cl. Still, it is the most reactive halogen. This is because of its low bond dissociation energy. Thus, the decreasing order of reactivity among group 17 elements is as follows: F > Cl > Br > I.Among the halogens, fluorine, chlorine, bromine, and iodine, fluorine is the most reactive one.

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