Copper is more reactive than calcium. true or false?

Answer;

The above statement is false

Explanation;

Copper is less reactive than Calcium.

This is because Calcium is higher in the reactivity series of metals compared to copper and thus reacts more than copper.

The reactivity series of metals is vital tool that is used in determining the products of displacement reactions and the reactivity of metals in other reactions. The higher the metal is in the reactivity series, the more reactive it is and conversely the lower the metal in the reactivity series the less reactive it is.

In this case, calcium is higher in the reactivity series than copper thus more reactive.

The given statement is false.

Explanation:

Electronic configuration of calcium is , that is, there are two extra electrons. So, in order to attain stability calcium loses two electrons readily.

Whereas electronic configuration of copper is . Since, it has completely filled d-orbital so, it is stable in nature and thus, does not react readily.

Therefore, we can conclude that reactivity of calcium is more than copper. That is why, the given statement is false.

the electronic configuration of an atom with eight electrons is 1s²2s²2p⁴. the orbital diagrams are shown in the figure.

as per the hunds rule:

1. electrons tend to avoid being in the same orbital as per as practicable.

2. electrons in different orbitals of the same energy will have their spin parallel.

this can be illustrated from the multiplicity of the orbitals of the atom. as there are four electrons in the p orbital and p orbital has 3 sub-shells. the electrons can be fed in different ways as shown in the figure but the correct orbital diagram will be as per the hunds rule.

organisms are more likely to be more preserved in mud than sand because mud is moist and wet, while sand is very dry.