C2 Topic 6 quiz - In your element

For number 5 i put 'sharing' which is actually the right answer as 'swapping' is the wrong term, as they don't give and take electrons, and splitting up electrons is wrong because they don't split. Please explain what the right answer is and try and go against my theory.

For Question 5, "swapping" is the wrong term. I would say transferring is more accurate,

Thanks for the quiz!