Understand that atoms can become positive ions by losing electrons or negative ions by gaining electrons.

Quick explanation

Understand that atoms can become positive ions by losing electrons or negative ions by gaining electrons

• This point belongs to The atom, especially The atom outcomes.
• You need to be able to understand that atoms can become positive ions by losing electrons or negative ions by gaining electrons.
• The key ideas to know are Know, State, and Understand.
• Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.