What is the chemical formula for bromide ion?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $24.99Unlock all

Study for the IGCSE Edexcel Chemistry Test. Access flashcards and multiple choice questions with hints and explanations. Get ready for your exam!

Multiple Choice

What is the chemical formula for bromide ion?

Explanation:
When bromine gains one electron, its outer shell becomes full and it forms a bromide ion with a -1 charge. The symbol Br- shows bromine with that extra electron, which is what an ion is. The simple bromide ion is just bromine plus that extra electron, so its formula is Br-. In contrast, Br2 is the neutral bromine molecule made of two bromine atoms bonded together, and BrO- or BrO3- are oxyanions where bromine is bonded to oxygen and carries different charges. Those are different species from bromide.

When bromine gains one electron, its outer shell becomes full and it forms a bromide ion with a -1 charge. The symbol Br- shows bromine with that extra electron, which is what an ion is. The simple bromide ion is just bromine plus that extra electron, so its formula is Br-. In contrast, Br2 is the neutral bromine molecule made of two bromine atoms bonded together, and BrO- or BrO3- are oxyanions where bromine is bonded to oxygen and carries different charges. Those are different species from bromide.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy