Question

Which of the following statements is true?



a.
In 1925, the four vacancies in the periodic table were all synthesized in the laboratory.



b.
In 1937, Ernest Lawrence synthesized technetium using a linear particle accelerator.


c.
. Element-61 and element-87 were discovered by bombarding atoms with fast-moving alpha particles


d.
Element-43 was discovered by bombarding molybdenum with slow-moving neutrons.

Answer 1

Explanation:

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Answer 2

Answer:

Element-43 was discovered by bombarding molybdenum with slow-moving neutrons.

=> True.