Why are elements at the bottom of a group more reactive?

The reactivity of Group 1 elements increases as you go down the group because: the outer electron gets further from the nucleus as you go down the group. the attraction between the nucleus and outer electron gets weaker as you go down the group – so the electron is more easily lost.

Is the top or bottom of a group more reactive?

In a reactivity series, the most reactive element is placed at the top and the least reactive element at the bottom. More reactive metals have a greater tendency to lose electrons and form positive ions .

Why are elements at the top of periodic table are more reactive?

The First Group Elements in the same group of the periodic table have the same number of valence electrons. These are the electrons in the outer energy level of the atoms that can be involved in chemical reactions. All the elements in group 1 have just one valence electron. This makes them very reactive.

Are the elements near the top of the table more or less reactive than those at the bottom of the table?

Atoms of elements at the top of a group on the periodic table are smaller than the atoms of elements at the bottom of the group. The valence electrons of the larger atoms are farther from the nucleus and are easier to remove, so the metals near the bottom are more reactive than those at the top.

Why do elements in 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.

Why are metals at the top for Group 1 and 2 less reactive than those at the bottom of the groups?

Instead, they are always found combined with other elements. The reactivity of alkaline Earth metals increases from the top to the bottom of the group. That’s because the atoms get bigger from the top to the bottom, so the valence electrons are farther from the nucleus. This makes the atom more reactive.

Why the elements of Group 1 are more reactive than the elements of group 2?

The alkali metals are more reactive than alkaline earth metals as alkali metals have just one valence electron and this makes atoms more reactive.

Why are metals at the top for group 1 and 2 less reactive than those at the bottom of the groups?

Which of the following elements is less reactive than the others?

Noble gases are the least reactive of all elements. That’s because they have eight valence electrons, which fill their outer energy level. This is the most stable arrangement of electrons, so noble gases rarely react with other elements and form compounds.

Which element is the least reactive in group 7?

halogens
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 ….Reactivity of halogens.

Halogen	Reaction with iron wool
Iodine	Has to be heated strongly and so does the iron wool. The reaction is slow.

Which element will be less reactive than the other members of its group in the periodic table?

Explanation: Out of the following given elements i.e. Astatine, Cesium, Fluorine, Rubidium, Astatine element is the least reactive than other elements. Being belong to halogen family astatine and fluorine both are very reactive as they have high electronegativity.