Which Statement About Our Current Knowledge of Elements Is FALSE

question 88

Multiple Choice

Which statement about our current knowledge of elements is FALSE?

• A) We now know of more than 110 elements, both natural and man-made.
• B) 81 stable elements have been found on Earth.
• C) 10 radioactive elements are also found on Earth.
• D) We have now produced over 50 radioactive elements not occurring in nature.
• E) Technetium is found in giant stars, but not yet in nature on the Earth.

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Definitions:

General Form

A standard way of writing equations that enables the comparison of coefficients.

Line

A line is a one-dimensional shape that extends without end in both directions and lacks any thickness.

Points

Specific locations in space or positions on a graph, defined by their coordinates.

Perpendicular

At an angle of 90 degrees to a given line, plane, or surface or to the ground.