Question 1
Paper 2Medium7 marksThe wavelength corresponding to the limit of convergence at higher frequency in the emission spectrum of gaseous element Q is
A database gives the following successive ionization energies for Q.
| Ionization energy | Value / |
|---|---|
| First | 419 |
| Second | 3052 |
| Third | 4420 |
| Fourth | 5877 |
(a)[3]
Calculate the first ionization energy of Q in using the data booklet. Give your answer to three significant figures.
(b)
Use your result from (a) and the successive ionization energy data.
(i)[1]
State whether your result from (a) agrees with the database value for the first ionization energy to three significant figures.
(ii)[3]
Deduce the group of Q, explaining your deduction using the successive ionization energy data.