Question: Why Fluorine Is The Most Reactive Element In Group 7?

What is the least reactive element?

Noble gasesNoble gases are the least reactive of all known elements.

That’s because with eight valence electrons, their outer energy levels are full.

The only exception is helium, which has just two electrons..

Why is fluorine more reactive than lithium?

Potassium and Lithium are metals and they have the tendency to loose electrons. … Fluorine and Chlorine are non-metals. They have the tendency to gain electron. Due to smaller size of fluorine it can hold the incoming electron more tightly than Cl hence more reactive than Cl.

Why is iodine the least reactive halogen?

Iodine is an essential element needed for life. … Iodine is the least reactive of the halogens as well as the most electropositive, meaning it tends to lose electrons and form positive ions during chemical reactions. It is also the heaviest and the least abundant of the stable halogens.

Is Cl or F more reactive?

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.

Why is fluorine the most reactive element?

The thing that makes fluorine so reactive is its electronegativity. Electronegativity is the tendency of an atom to attract a shared pair of electrons. … Therefore, since fluorine has a higher electronegatvity than chlorine, fluorine is more reactive.

Is Group 1 or Group 7 more reactive?

As you go down group 1 (the alkali metals) in the periodic table, the elements get more reactive. As you go up group 7 (the halogens), again the elements get more reactive.

Which element in Group 6 is the least reactive?

Noble gasesNoble gases are the least reactive of all known elements. That’s because with eight valence electrons, their outer energy levels are full. The only exception is helium, which has just two electrons.

What is Group 0 also known as?

The elements in group 0 are called the noble gases . They exist as single atoms .

Is phosphorus or fluorine more reactive?

Explanation: The reason being is because… Since Fluorine has a great amount of electromagnetically it reacts at greater amounts. than phosphorus.

Why is fluorine the most reactive element in Group 7 GCSE?

The group 7 elements want to gain one more electron so that they have a stable electronic structure. The smaller the atom, the easier it is to grab an electron from another atom, making the atom more reactive.

What is the least reactive element in Group 7?

The non-metal elements in Group 7 – known as the halogens – get less reactive as you go down the group. This is the opposite trend to that seen in the alkali metals in Group 1 of the periodic table . Fluorine is the most reactive element of all in Group 7.

Why does Group 7 get less reactive?

The reactivity of Group 7 elements decreases down the group. … The electrons in the outer shell move further away from the nucleus as we go down the group and the attraction force between the electrons and the nucleus become weaker and weaker. This weaker attraction in the larger atoms makes it harder to gain electron.

Why is Group 1 more reactive as you go down?

The reactivity of group 1 elements increases as you go down the group because: the atoms become larger. the outer electron becomes further from the nucleus. the force of attraction between the nucleus and the outer electron decreases.

Are Group 7 elements reactive?

The group 7 halogens have 7 outer electrons and only need to gain one electron to form a stable negative ion, or, share one electron to make a covalent bond, thus making them the most reactive non-metals of the periodic table.

Why is fluorine more reactive than oxygen?

Fluorine is the most reactive because it has the strongest attraction for oxygen. Since electronegativity decreases going to the left of the periodic table, oxygen is the second most reactive element on the list. Nitrogen is the third most reactive. … Fluorine has a smaller atomic radius than oxygen.

Why is francium so reactive?

Francium is an alkali metal in group 1/IA. All alkali metals have one valence electron. … The attraction from the positive nucleus to the negative electron is less. This makes it easier to remove the electron and makes the atom more reactive.

Which is more reactive fluorine or iodine?

Rather, fluorine is the most reactive halogen. It reacts violently with almost all chemicals. Bond cleavage of fluorine is much easier that that of other halogens, which may be due to the repulsive force of the lone pairs of electrons. … So, iodine should be the most reactive halogen and not halogen.

Why Fluorine is most reactive than other halogens?

Q- Why is Fluorine more reactive than other halogens? Fluorine is more reactive. … This is because the valence/bonding electrons are closer to the nucleus in Fluorine than they are Chlorine and others and thus more strongly attracted. Fluorine is most electronegative, thus it is most reactive.