Mendeleev Found That When He Arranged the Known Elements According

question 62

Multiple Choice

Mendeleev found that when he arranged the known elements according to their atomic mass,the entries in the table exhibited a pattern of chemical properties that repeated itself in groups of eight elements.This led to the generalization now known as:

• A)an atomic model.
• B)valance electrons.
• C)the periodic table.
• D)the octet rule.

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Definitions:

Drew a Blank

describes the moment when an individual is unable to recall information or think of an answer suddenly.

Important Exam

A test or assessment that has significant consequences for a person's academic or professional career.

Remembered

The act of recalling or retrieving information or experiences from one's past.

Three-Stage Model

A psychological model that describes memory as consisting of three stages: sensory memory, short-term memory, and long-term memory.