meisbigbrain meisbigbrain

10-02-2021
Chemistry

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PLS HELP i will give 10 points
In Mendeleev’s Periodic Table, why was there no mention of Noble gases like Helium, Neon and Argon?

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kphaysaleum13 kphaysaleum13

10-02-2021

Answer:Answer choices are:

A. These elements did not fit in with his pattern.

B. These elements are gases and he didn't include gases.

C. The atoms of these elements had no atomic mass.

D. These elements had not yet been discovered.

___________________________________________________________

Correct answer choice is:

D. These elements had not yet been discovered.

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