Elements will gain or lose electrons to form a noble gas configuration. Atoms that meet the octet rule are stable because their valence electrons have a relatively low potential energy. Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions here.
Explanation:
The triple beam balance is used to measure masses very precisely; the reading error is 0.05g
The fixed the the lever pivots around is called the fulcrum
