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30.zinc31.gallium
32.Germanium
33.arsenic
34.selenium
35.bromine
36.krypton
37.rubidium
38.strontium
39.yttrium
40.zirconium
41.niobium
42.molybdenum
43.technetium
44.ruthenium
45.rhodium
46.palladium
47.silver
48.cadmium
49.indium
50.tin
51.antimony
52.tellurium
53.iodine
54.xenon
55.cesium
56.barium
57.lanthanum
58.cerium
59.praseodymium
60.neodymium
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