Respuesta :

1. Ca(s)

2. Co(s)

3. Cs(s)

4. Cu(s)

Answer is 3. Cs(s)

The metal which reacts spontaneously with SR2+ Ion is Cs(s) ( i.e; Caesium )

Some few examples of metals include zinc, iron, Cobalt, Nickel, platinum, Gold and many more

What is a metal?

A metal can be defined as a chemical element and a solid material. It has the following properties below.

  • It is hard
  • It is shiny
  • It is malleable
  • It is fusible
  • It is ductile
  • It is good conductor of heat and electricity

Learn more about metals:

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