Skip to content

Course home

Sign up

2.3 Ionic bonding

EasyMediumHard
123456789101112131415161718192021222324252627282930313233
Question 21

Bromine has atomic number 35. A bromide ion, Br−\mathrm{Br^-}Br−, is formed from a bromine-81 atom.

Which calculation gives the number of electrons in this bromide ion?

[1]
A

35−135 - 135−1

B

35+135 + 135+1

C

81−3581 - 3581−35

D

81+181 + 181+1

Markscheme

2.3 Ionic bonding Questions

  1. GCSE
  2. /Chemistry
  3. /2.3 Ionic bonding

119 exam-style questions on Edexcel GCSE Chemistry 2.3 Ionic bonding, covering 2.3.1 Ions and the formation of ionic bonds, 2.3.2 Naming and deducing formulae of ionic compounds, and 2.3.3 Giant ionic lattices. Each one has a worked solution and a mark scheme showing where the marks go.

Question bank