The most reactive elementary group is alkali metals (situated far apart from intermediate metals and noble gases). Cesium is second from the bottom of this group, has 6 shells of electrons, and it matches the features of a reactive atom, making it the most reactive element.
Which metal is more reactive?
The ionization enthalpy of potassium is minimum. It is the most electropositive and most reactive metal. It reacts with air as well as water vigorously. The reactions are highly exothermic and hence, the hydrogen gas evolved as byproduct catches fire.
Which is the more reactive element?
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.
What is the least reactive element?
Noble gases are the least reactive of all known elements. That’s because with eight valence electrons, their outer energy levels are full. The only exception is helium, which has just two electrons.
Is CU reactive?
| Element Reaction with dilute acids | Copper Very slowly | Silver Barely reacts | Gold Does not react |
|---|
What metal is the least reactive?
Silver, gold, and platinum are metals with the least reactivity. They are found in nature.
Which metal is 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 potassium a most reactive metal?
– Potassium metal has more number of shells compared to sodium and thus it becomes easy to remove one electron from its outermost orbital ( less ionization enthalpy). – So, out of given metals, Potassium is the most reactive metal . Therefore, potassium is the most reactive metal among the given options.
Which is more reactive N or NE?
Neon: 1s2, 2s2, 2p6. As we can see from the electronic configurations, neon has a fully filled outer shell and hence is non-reactive . ... Hence, it is much easier for oxygen to complete its octet, as compared to nitrogen and that is why, oxygen is more reactive than nitrogen. Hope this helps.
What is the least reactive element in period 3?
Silicon . Silicon (symbol Si) is a group 14 metalloid. It is less reactive than its chemical analog carbon, the nonmetal directly above it in the periodic table, but more reactive than germanium, the metalloid directly below it in the table.
What is the least reactive element in Group 2?
The least reactive element in group 2 is beryllium . Even at red heat beryllium will not react with water and it does not react with dinitrogen (N 2 ).
Is iron very reactive?
Pure iron is quite reactive . In a very finely divided state metallic iron is pyrophoric (i.e., it ignites spontaneously).
Is Silver reactive?
Silver is one of the noblest—that is, least chemically reactive —of the transition elements.
Is lead a reactive metal?
Lead is a reactive metal , but its reactivity is somewhat inhibited by the formation of an outer skin of protective compounds. For example, when a freshly cut piece of lead metal is exposed to the air, it quickly reacts with oxygen to form a thin outer layer of lead oxide.
Which is less reactive mg or Zn Why?
This shows magnesium is more reactive than zinc and both metals are more reactive than hydrogen. This third displacement reaction can be used for any metal that appears lower than itself on the table. ... Adding a metal like copper to zinc ions will not displace the zinc since copper appears lower than zinc on the table.
Which is the most reactive metal family?
The family that contains the most reactive metals are the alkali metals .
