Question
Which of the following elements is a member of the
actinoid series?Solution
The actinide series is a group of 15 elements on the periodic table with atomic numbers 89–103. The elements in this series are radioactive and have a wide range of oxidation states. Thorium is a radioactive actinide metal with the atomic number 90.
More Chemistry GS Questions
- Find the wrong number in the given number series.
8, 14, 24, 49, 59, 84 Find the wrong number in the given number series.
8, 12, 23, 40, 66, 103
174 180 198 252 414 910
640 1920 240 720 92 270
Find the wrong number in the given number series.
132, 147, 138, 155, 144, 161
1 3 7 15 33
...Find the wrong number in the given number series,
9, 60, 299, 1199, 3599, 7199
- Find the wrong number in the given number series.
32.6, 36.4, 40.2, 43.6, 47.8, 51.6 11 110 978 6824 34103 102290
- Find the wrong number in the given number series.
12, 21, 5, 38, 2, 71
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