Question

compare the student text with the source.
source: richard van noorden, \four chemical elements added to periodic table.\ published in nature, 2016:
the unstable agglomerations of protons and neutrons last mere fractions of a second before they fall apart into smaller, more stable fragments.
student text:
according to van noorden, the \unstable agglomerations of protons and neutrons\ last less than a second before they break apart.
is the student text plagiarized?
no, it is not plagiarized.
yes, because it fails to cite the source.
yes, because it fails to use quotation marks and fails to cite the source.

Explanation:

The student properly attributes the source by naming Van Noorden, uses quotation marks around the directly phrased segment from the source, and rephrases the remaining content appropriately. This meets academic standards for avoiding plagiarism.

Answer:

No, it is not plagiarized.