Since, C has more number of shells than A this means valence electrons of C is farther than A from the nucleus. And due to the more distance of valence electrons; element C has less electonnegativity than A. Thus, A is more reactive than C.
Why is CU not reactive?
In this case, zinc is more reactive than hydrogen, but copper is less reactive than hydrogen. It means that zinc can displace hydrogen from HCl , but copper cannot. ... So that makes zinc generally more reactive than copper, and in relation to hydrogen. So zinc is able to displace hydrogen from HCl, but copper is not.
Why is C less reactive than a?
Down the group, the atomic size increases. Therefore, the attraction of the nucleus for the outside electrons decreases. This means that down the group of non-metals, reactivity decreases . Thus, the element C is less reactive than the element A.
Is CA the least reactive?
Calcium has a much less vigorous reaction . A more reactive metal will displace a less reactive metal from a compound. Sodium metal reacts vigorously with all the halogens to form sodium halides.. The top metals are more reactive than the metals on the bottom.
Is Carbon less reactive than oxygen?
Carbon is less reactive than O2 , Cl2 etc.
Is C more reactive than a?
Down the group, the atomic size increases. Therefore, the attraction of the nucleus for the outside electrons decreases. This means that down the group of non-metals, reactivity decreases. Thus, the element C is less reactive than the element A .
What is the most highly reactive element?
Reactivity of Group 1 Elements
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.
Is CU reactive?
| Element Reaction with dilute acids | Copper Very slowly | Silver Barely reacts | Gold Does not react |
|---|
Why is silver not very reactive?
Silver is a rather unreactive metal. This is because its filled 4d shell is not very effective in shielding the electrostatic forces of attraction from the nucleus to the outermost 5s electron , and hence silver is near the bottom of the electrochemical series (E 0 (Ag + /Ag) = +0.799 V).
Why is K more reactive than CU?
Reactivity of element decreases on moving from top to bottom in the given reactivity series. In the reactivity series, copper, gold, and silver are at the bottom and hence are least reactive. ... Potassium is at the top of the series and hence is most reactive .
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.
What metal is the least reactive?
Silver, gold, and platinum are metals with the least reactivity. They are found in nature.
How do you know which element is more reactive?
The elements toward the bottom left corner of the periodic table are the metals that are the most active in the sense of being the most reactive. Lithium, sodium, and potassium all react with water, for example.
What will increase the order of reactivity of oxygen?
Conclusion: The descending order of reactivity of metals with oxygen is Mg, Zn, Fe, Pb, Cu.
Which is more reactive Fe2+ or Fe3+ and why?
In an oxidative solution, Fe2+ will be. In a reductive environment, Fe3+ will be more reactive . Fe3 is more stable than Fe2, so Fe2 is more reactive than Fe3.
Which is more reactive hydrogen or oxygen?
Hydrogen is more reactive than oxygen because the outermost shell of H have 1 electron and needs one more to complete its octet whereas O have 4 electrons in its valance shell and needs 5 more electrons to complete its octet.
