Why is chlorine more electronegative than bromine?

So as you go from fluorine to chlorine to bromine and so on down the periodic table, the electrons are further away from the nucleus and better shielded from the nuclear charge and thus not as attracted to the nucleus. For that reason the electronegativity decreases as you go down the periodic table.
A.

Why Bromine is less reactive than chlorine?

For example chlorine is less reactive than fluorine because the outer electrons in a chlorine atom are further from the nucleus than the outer electrons in a fluorine atom. It is harder for a chlorine atom to gain an electron than it is for a fluorine atom.
  • Do the alkaline earth metals tend to gain or lose electrons in chemical reactions?

    Noble Gases usually do not react because they do not tend to gain or lose electrons. Alkali and Alkaline Earth Metals are soft and melt at low temperatures. Semi-metals have properties between metals and nonmetals and can gain or lose different numbers of electrons in reactions.
  • Why is Xenon an unreactive gas?

    They are called the noble gases because they are very unreactive. The highest occupied energy levels (outermost shells) of their atoms are full: atoms of the other noble gases have eight electrons in their outer energy level.
  • Why does the reactivity of Group 1 increase?

    All alkali metals have one electron in the outer shell. As you go down group 1, the number of electron shells increases – lithium has two, sodium has three etc. Therefore, the outermost electron gets further from the nucleus. The attraction from the positive nucleus to the negative electron is less.
B.

Why is bromine very reactive?

Bromine is a member of the halogen family of elements. Its companions include fluorine, chlorine, and iodine. Like the other halogens, bromine has seven electrons in its outer shell and is very reactive. As with all reactive elements, bromine is never found alone in nature.
  • Is bromine rare?

    Bromine does not occur naturally on Earth as an element. Its salts are found in the crust at about .4 parts per million. Bromine is only the 64th most common element on Earth. It is more rare than three quarters of the elements that comprise the Earth's crust.
  • Is chlorine reactive?

    Halogens are notorious electron-hogs; powerfully attracting electrons from atoms of other elements, particularly from the alkali metals. This makes the halogens highly reactive. Chlorine, being one of the smaller halogens, will react strongly with most elements.
  • Why bromine is more reactive than iodine?

    Larger atoms = less reactive. The more difficult it is to gain these outer electrons, the less reactive a halogen is. For example chlorine is less reactive than fluorine because the outer electrons in a chlorine atom are further from the nucleus than the outer electrons in a fluorine atom.
C.

Which is more reactive bromine or fluorine?

This means that the atoms of the halogens are not "very happy" and they will do all they can to gain one more electron such that all the electrons in the outer shells have partners.. In order of reactivity fluorine is the most reactive followed by chlorine, then bromine, iodine and astatine is the least reactive.
  • Why xenon is so unreactive?

    They are called the noble gases because they are very unreactive. The highest occupied energy levels (outermost shells) of their atoms are full: atoms of the other noble gases have eight electrons in their outer energy level.
  • Why does the reactivity of Group 1 increase?

    All alkali metals have one electron in the outer shell. As you go down group 1, the number of electron shells increases – lithium has two, sodium has three etc. Therefore, the outermost electron gets further from the nucleus. The attraction from the positive nucleus to the negative electron is less.
  • Do the alkaline earth metals tend to gain or lose electrons in chemical reactions?

    Noble Gases usually do not react because they do not tend to gain or lose electrons. Alkali and Alkaline Earth Metals are soft and melt at low temperatures. Semi-metals have properties between metals and nonmetals and can gain or lose different numbers of electrons in reactions.

Updated: 2nd October 2019

Rate This Answer

4.7 / 5 based on 3 votes.