it gets lees reactive
The boiling points of noble gases increases down a group.
Down the group generally boiling point increases. And this is true in the case of noble gases or group 18 also.
it is slow at frist then it`s fast
Noble gases have a full outer electron shell, which makes them highly stable and unreactive. This electron configuration is known as the octet rule or the noble gas configuration, and it is a pattern observed in all noble gases.
As you go down Group 0 (also known as the noble gases), both metals and nonmetals tend to become less reactive. The noble gases are already very stable and unreactive, and this reactivity decreases even further as you move down the group. Metals in Group 0, called alkali metals, also become more reactive as you go down the group, while nonmetals in Group 0, known as halogens, become less reactive.
The boiling points of noble gases increases down a group.
Down the group generally boiling point increases. And this is true in the case of noble gases or group 18 also.
it is slow at frist then it`s fast
Noble gases have a full outer electron shell, which makes them highly stable and unreactive. This electron configuration is known as the octet rule or the noble gas configuration, and it is a pattern observed in all noble gases.
As you go down Group 0 (also known as the noble gases), both metals and nonmetals tend to become less reactive. The noble gases are already very stable and unreactive, and this reactivity decreases even further as you move down the group. Metals in Group 0, called alkali metals, also become more reactive as you go down the group, while nonmetals in Group 0, known as halogens, become less reactive.
As we move down the group (group 18 of periodic table) of noble gases from Helium (He), Neon (Ne), Argon (Ar), Krypton (Kr), Xenon (Xe), and Radon (Rn) the individual atoms become heavier and so gases at the same pressure and temperature will become more dense.
Down the group the density generally increases. Thus radon will be the heaviest element.
Non-reactive elements or compounds are called inert. This is a bit misleading, however - anything can be made to react given the right circumstances. The noble gases are about as close as you can get to truly inert, but even they will react under extreme conditions. >>M.T.<<
It increases from left to right across groups, except for group 18 (Noble gases). It also increases as you go down the rows (increasing period).
It sounds like you're listing noble gases, the members of group 18. In addition, helium and radon are members. The properties of these gases are chemically very similar to that of helium, though the physical properties, like density, change as you move up and down the group.
with the noble gases, 3rd down.
The melting and boiling points increase down the group because of thevan der Waals forces. The size of the molecules increases down the group. This increase in size means an increase in the strength of the van der Waals forces.