Write the chemical symbols for three different atoms or atomic cations with 27 electrons. asap!

The chemical symbols for three different atoms or atomic cations with 27 electrons are

Explanation:

An atom is neutral specie with equal number of electrons and protons in it.

Atomic number =  Number of protons = Number of electrons

Atomic number =- Number electrons = 27

The atom with 27 atomic number Cobalt that Co.

A cation is an ionic species which carry positive charge.When an atom looses an electron it forms cation.

Copper has atomic number of 29. When the copper atom looses 2 electrons it get converted into copper cation that is with 27 electrons in its ion.

Nickel has atomic number of 28.When the nickel atom looses 1 electron it get converted into nickel cation that is with 27 electrons in its ion.

So,the chemical symbols for three different atoms or atomic cations with 27 electrons are