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Chemistry
Chemistry
Problem
An unknown hydrogen-like ion shows the following two spectral lines. • Lyman-
α
\alpha
α
:
13.4
±
0.2
nm
13.4\pm0.2\,\text{nm}
13.4
±
0.2
nm
• Balmer-
α
\alpha
α
:
73.0
±
0.5
nm
73.0\pm0.5\,\text{nm}
73.0
±
0.5
nm
Based on these measurements, the most probable integer value of the atomic number
Z
Z
Z
is a)
Z
=
4
Z=4
Z
=
4
b)
Z
=
9
Z=9
Z
=
9
c)
Z
=
3
Z=3
Z
=
3
d)
Z
=
2
Z=2
Z
=
2
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