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How do the properties of the halogens and noble gases compare?
They are completely different Noble gases are colorless, monoatomic gases; the halogens are diatomic, colored and there form at room temperature is F, gas, Cl, gas, Br, liquid I, solid. Nobel gases are chemically unreactive, helium and neon have no known compounds, a few very reactive compounds are known for the rest. The halogens are all reactive, fluoringe is the most reactive. One or more of the halogens will form compounds with all of the other elements apart from the noble gases. (apart from He and Ne)
Why can't the halogen group be found free in nature?
It is because halogens are some of the most reactive elements in existence Every atom wants to have a full valence outer shell. Halogens are only missing one electron to have a full valence shell. So either they are diatomic halogens such as chlorine which never is singular it is either Cl2 or mixed with other elements.
Which are more chemically reactive halogens or noble gases?
Noble gases have completely filled orbitals and hence are generally chemically inert. Halogens are highly reactive as they need one more electron to complete octet.
Why halogens are more reactive than noble gases?
Halogens have 7 valence electrons and nobel gases have 8. Each atom wants 8 or none electrons according to the octet rule. Therefore, nobel gases are relatively unreactive b/c they already have 8 Halogens only need 1 more valence electron, making them very reactive.
What is an element that is highly reactive gaseous nonmetal?
Chlorine and fluorine, with fluorine more reactive. Some would also include oxygen. (The two remaining halogens are not gaseous at room temperature.)
Why inter halogens are more reactive then halogens?
If they are more reactive, I would speculate it is due to their differences in electronegativities. The greater the difference, the more stable the compound. Electronegativities decrease as you go from F to I. For example, ClF3 reacts more violently than F2, yet IF7 is chemically inert. http://en.wikipedia.org/wiki/Interhalogen
Are halogens more reactive than actinides?
No actinides are more reactive
How do the properties of the halogens and noble gases compare?
They are completely different Noble gases are colorless, monoatomic gases; the halogens are diatomic, colored and there form at room temperature is F, gas, Cl, gas, Br, liquid I, solid. Nobel gases are chemically unreactive, helium and neon have no known compounds, a few very reactive compounds are known for the rest. The halogens are all reactive, fluoringe is the most reactive. One or more of the halogens will form compounds with all of the other elements apart from the noble gases. (apart from He and Ne)
Do less reactive halogens displace more reactive ones?
No. More reactive halogens will replace less reactive ones in a compound. This is because a more reactive halogen is more stable in a compound relative to a less reactive one, while a less reactive halogen is relatively more stable in its elemental form.
Do the halogens become more reactive or less reactive as they go lower down the group?
The most reactive halogens - fluorone and chlorine - are in the upper part of the group.
Why can't the halogen group be found free in nature?
It is because halogens are some of the most reactive elements in existence Every atom wants to have a full valence outer shell. Halogens are only missing one electron to have a full valence shell. So either they are diatomic halogens such as chlorine which never is singular it is either Cl2 or mixed with other elements.
Which are more chemically reactive halogens or noble gases?
Noble gases have completely filled orbitals and hence are generally chemically inert. Halogens are highly reactive as they need one more electron to complete octet.
Why the less reactive halogen is isolated in the dichloromethane?
All halogens are soluble in chlorinated hydrocarbons like dichloromethane. Since the halogens can interchange, the reaction will be determined by electronegativity. The more electronegative, or less reactive halogen, will be isolated.
Why are you more likely to use compounds of the alkali metals and halogens rather than the elements themselves?
These elements in pure form are extremely reactive. It is hard to create and maintain the pure environment necessary to maintain their purity.
Which of the two halogens shown is more reactive?
The most reactive halogen, and one of the most reactive of all the elements, is fluorine. Reactivity in the halogen family continues in order from most reactive to least reactive with chlorine, bromine, iodine, and astatine.
Why halogens are more reactive than noble gases?
Halogens have 7 valence electrons and nobel gases have 8. Each atom wants 8 or none electrons according to the octet rule. Therefore, nobel gases are relatively unreactive b/c they already have 8 Halogens only need 1 more valence electron, making them very reactive.
What trends the periodic table should be expected as the atomic number decreases in the halogens?
Halogens with lower atomic number are more reactive and less dense. Also iodine is solid, bromine liquid and the first halogens are gases.
