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Atomic structure

Atomic structure

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Question 19

An ion X2+X^{2+}X2+ has the electronic configuration:

1s22s22p63s23p63d6 1s^2 2s^2 2p^6 3s^2 3p^6 3d^6 1s22s22p63s23p63d6

What is the proton number (atomic number) of element XXX?

A

222222

B

242424

C

262626

D

282828

Markscheme

Atomic structure Questions

  1. GCSE
  2. /Chemistry
  3. /Atomic structure

77 exam-style questions on OCR GCSE Chemistry Atomic structure. Each one has a worked solution and a mark scheme showing where the marks go.

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