Actinides are the elements with atomic numbers from A. 97 to 104 B. 101 to 115 C. 89 to 103 D. 36 from 43

97 to 104
101 to 115
89 to 103
36 from 43

The correct answer is C. 89 to 103.

Actinides are the elements in the periodic table with atomic numbers from 89 to 103. They are all radioactive and have no stable isotopes. The actinides are named after actinium, the first element in the series. The actinides are all metals and have similar chemical properties. They are all highly reactive and form compounds with a wide range of elements. The actinides are used in a variety of applications, including nuclear power, medicine, and research.

Option A is incorrect because it includes the element 104, which is not an actinide. Option B is incorrect because it includes the elements 105 to 115, which are not actinides. Option D is incorrect because it includes the elements 36 to 43, which are not actinides.

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