Question

What is the correct order of reactivity of metals in increasing order​

Answer 1

Answer:

In order of decreasing reactivity, the metals potassium, sodium, lithium, calcium, magnesium, zinc, iron and copper can be put in order of their reactivity from their reactions with water and dilute acids.

Answer 2

The correct order of reactivity of metals in increasing order​ is that it increases down the group and decreases across a period.

Explanation:

• Metals are the elements which tend to lose electrons in order to attain noble gas configuration. So, smaller is the size of metal more will be the force of attraction present within its nucleus and valence electrons.

• Hence, a smaller metal will not easily lose its valence electrons. On the other hand, larger is the size of metal less will be the force of attraction present within its nucleus and valence electrons. Hence, more easily the metal will lose an electron.

• Therefore, when we move down a group there occurs an increase in the reactivity of metals and when we move across a period there will be decrease in the reactivity of metals.

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