Noble Gases (18): (Name all noble gases)
1 answer:
Answer :
- The Noble gasses are Helium (He), Neon (Ne), Argon (Ar), Krypton (Kr), Xenon (Xe), Radon (Rn).
- When air is cold, Oxygen liquefies first at
.
liquefies at
. About 1% of the air is still gas composed of the noble gas Argon, Ar.
- One noble gas was discovered on the sun. It’s spectrum was identify first. This is Helium, He.
- One of noble gas is radioactive and seeps up your basement floors and walls. It is Radon, Rn.
- This noble gas is used in electronic flashes and other bright lights. It is Xenon, Xe.
- This noble gas is best known for its orange color in gas discharge tubes. It is used for signs that bear its name. It is Neon, Ne.
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Answer: The given statement is true.
Explanation: If this reaction would have occurred, then this reaction would be considered as displacement reaction.
Displacement reactions are the reaction in which more reactive element displaces the less reactive element in a chemical reaction. This is based on the reactivity of elements.
Reactivity of elements is the tendency of the elements to gain or loose electrons. The reactivity decreases down the group in a periodic table.
In the given reaction, Iodine and chlorine are the elements of the same group in the periodic table and iodine lies below chlorine in the group. So, the reactivity of iodine is less than the reactivity of chlorine.
Hence, in the given reaction, iodine will not replace chlorine because it lies below in the periodic table.