Which of the Following Elements Was Predicted by Mendeleev in 1869

question 141

Multiple Choice

Which of the following elements was predicted by Mendeleev in 1869 before its discovery in 1886 in Germany?

• A)Ga
• B)Ge
• C)Sc
• D)all of the above
• E)none of the above

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Definitions:

Depreciated Value

The decline in value of an asset over time because of deterioration or becoming outdated.

Business

An organization or enterprising entity engaged in commercial, industrial, or professional activities.

Vertical Line

A straight line that goes from up to down (or down to up) and does not slant; in Cartesian coordinates, it is described by an equation of the form \(x = a\).

Slope-intercept Form

An equation of a straight line in the form y = mx + b, where m is the slope and b is the y-intercept.