Question

How many electrons are gained or lost in the following half-reaction? Na → Na⁺

1) Electrons are gained
2) Electrons are lost
3) No electrons are gained or lost
4) Cannot be determined

Answer 1

In the half-reaction Na -> Na⁺, electrons are lost.

Step-by-step explanation:

The half-reaction given is Na -> Na⁺. In this reaction, an electron is lost by sodium. Therefore, the correct answer is option 2) Electrons are lost.