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Is Br more reactive than at?
So, smaller is the size of a non-metal more readily it will attract electrons because then nucleus will be more closer to valence shell. Hence, both bromine (Br) and astatine (At) belongs to same group. Size of bromine is smaller than the size of astatine. Hence, Br is the non-metal which will be more reactive than At.
What is more reactive F or Br?
Among the halogens, fluorine, chlorine, bromine, and iodine, fluorine is the most reactive one.
Is Br the most reactive?
Fluorine is the most reactive element of all in Group 7….Reactivity of halogens.
| Halogen | Reaction with iron wool |
|---|---|
| Bromine | Has to be warmed and the iron wool heated. The reaction is faster. |
How do you know which is more reactive?
The elements toward the bottom left corner of the periodic table are the metals that are the most active in the sense of being the most reactive. Lithium, sodium, and potassium all react with water, for example.
Is Cl more stable than Br?
Bromine radical, being less reactive, is more selective for the 2° radical. Cl•, being less stable and more reactive, is less choosy and less selective.
Why is Br more selective than Cl?
Bromination of alkanes occurs by a similar mechanism, but is slower and more selective because a bromine atom is a less reactive hydrogen abstraction agent than a chlorine atom, as reflected by the higher bond energy of H-Cl than H-Br.
WHY IS F so reactive?
When fluorine molecule breaks up into F- ions it remains highly unstable and just wants to bond with other element. Due to this charge density fluorine has high polarizability which makes it more reactive.
Why does Group 7 get less reactive?
Reactivity decreases down the group. This is because group 7 elements react by gaining an electron. As you move down the group, the amount of electron shielding increases, meaning that the electron is less attracted to the nucleus.
How do you know when an element is least reactive?
The reactivity of an element can be determined by looking at the electron configuration of the element. The least reactive elements are those who have a full outermost valence shell ie they have 8 electrons in the outer shell so elements such as helium, neon, radon or the transition elements.
Is Cl or Br more basic?
Bases are the exact opposite of acids, ranked in their ability to donate an electron pair. So if fluorine were the most electronegative in terms of acidity, it would be the opposite in terms of base classification. The F would be the strongest base, followed by the Cl, the Br, and lastly, the I.