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.
Does Group 1 get more reactive?
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.
Which is the most reactive in Group 1?
The reactivity of alkali metals increases from the top to the bottom of the group, so lithium (Li) is the least reactive alkali metal and francium (Fr) is the most reactive.
Are group 1 and 7 the most 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 become more reactive.
What are the most reactive groups?
The alkali metals are the most reactive metals. Group 2 consists of the alkaline Earth metals. They are very reactive but less so than the alkali metals.
Which element in group 1 is the least reactive?
Reactivity of Group 1 Elements
The reactivity of alkali metals increases from the top to the bottom of the group, so lithium (Li) is the least reactive alkali metal and francium (Fr) is the most 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.
What is the most reactive element in Group 7?
Fluorine is the most reactive element of all in Group 7. You can see the trend in reactivity if you react the halogens with iron wool.
Why is group 2 reactive?
Reactivity. Reactivity of Group II elements increases down the group . This can be explained by the increase in ease at losing two outer electrons as we descend the group. The loss of electrons becomes easier due to the decreasing ionisation energy required.
Does reactivity increase down group 0?
All elements in group 0 are un-reactive(have eight electrons in the outer shell) and gases. boiling points of the gases increase down the group . ... Alkali metals have similar chemical properties because when they react their atoms need to lose one electron so that they have a stable electronic structure.
What is the least reactive element in Group 7?
- Reactivity of Group 7 non-metals increases as you go up the group.
- Out of the 3 halogens, chlorine, bromine and Iodine, chlorine is the most reactive and iodine is the least reactive.
Why is Group One the most reactive?
Alkali metals are among the most reactive metals. This is due in part to their larger atomic radii and low ionization energies . They tend to donate their electrons in reactions and have an oxidation state of +1. ... All these characteristics can be attributed to these elements’ large atomic radii and weak metallic bonding.
Which group 1 metal is the most reactive with water?
The alkali metals ( Li, Na, K, Rb, Cs, and Fr ) are the most reactive metals in the periodic table – they all react vigorously or even explosively with cold water, resulting in the displacement of hydrogen.
Is Group 1 or Group 2 more reactive?
The outermost electrons of the alkaline earth metals (group 2) are more difficult to remove than the outer electron of the alkali metals, leading to the group 2 metals being less reactive than those in group 1 . These elements easily form compounds in which the metals exhibit an oxidation state of 2+.
Why are groups 1 and 17 the most reactive?
Reactivity of Group 1 Elements
Because alkali metals are so reactive , they are found in nature only in combination with other elements. They often combine with group 17 elements, which are very “eager” to gain an electron.
What are the three most reactive groups?
Hydrogen is a very reactive gas, and the alkali metals are even more reactive. In fact, they are the most reactive metals and, along with the elements in group 17, are the most reactive of all elements.
