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Group 2

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Question 1

Which statement(s) for Group 2 elements is/are correct?

  1. The first ionisation energy of calcium is greater than the first ionisation energy of strontium.
  2. A calcium ion, Ca2+\text{Ca}^{2+}Ca2+, contains a total of 6 electrons in s orbitals.
  3. The equation for the reaction of strontium with water is:
2Sr+2H2O→2SrOH+H2 2\text{Sr} + 2\text{H}_2\text{O} \rightarrow 2\text{SrOH} + \text{H}_2 2Sr+2H2​O→2SrOH+H2​

1, 2 and 3

Only 1 and 2

Only 2 and 3

Only 1

Group 2 Questions

  1. A Level
  2. /Chemistry
  3. /Group 2