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Why couldn't Mendeleev predict the existence of the noble gases in the periodic table of elements?
Wiki User
∙ 12y ago
He could predict other elements because there was an obvious gap, but he couldn't predict the noble gases because he didn't realize that there was going to be an 18th group since none of them were yet discovered. When he first started organizing the periodic table, the pattern still made sense even without the noble gases.
Wiki User
∙ 12y ago
Wiki User
∙ 11y agoWiki User
∙ 11y agoBecause noble gases were not discovered when Mendeleev formulated his periodic table in 1869.
Wiki User
∙ 11y agoBecause noble gases were not discovered when Mendeleev proposed his periodic table
Wiki User
∙ 11y agobecause noble gases were not discovered when Mendeleev proposed his periodic table
Wiki User
∙ 11y agoNoble gases were not discovered when Mendeleev proposed his periodic table
Wiki User
∙ 11y agoThey werent yet discovered.
Wiki User
∙ 12y agobc their existence wasnt know yet
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