Respuesta :

When an atom DONATES an electron, that means it lost an electron. If an atom loses an electron, it is called a cation, and has a positive charge. 

Final answer: Cation

The atom that donates an electron is called an electron donor.

What is atom?

Atom is a basic building block of all matter.

What is electron?

Electron is a negatively charged subatomic particle that are bound to the nucleus of all the atoms.

What is electron donor?

An atom which can donate electrons to an electron deficient  species is known as electron donor.

  • Electron donors are ions or molecules that donate electrons and act as reducing agents in chemical reactions.
  • Electron acceptors are ions or molecules that accepts electrons and act as an oxidizing agents in chemical reactions.
  • e.g., In the combustion reaction of hydrogen and oxygen to produce water (H2O), two hydrogen atoms donate their electrons to an oxygen atom. In this reaction, the oxygen is reduced to an oxidation state of -2 and each hydrogen is oxidized to +1. Oxygen is an electron acceptor and hydrogen is an electron donor.

Hence, the atom that donates an electron is called an electron donor.

To learn more about electron donor here

https://brainly.com/question/877659

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