Who Stated That the Elements,when Arranged According to Their Atomic

question 77

Multiple Choice

Who stated that the elements,when arranged according to their atomic masses,showed a distinct periodicity of their properties?

• A)Dmitri Mendeleev
• B)Niels Bohr
• C)J.J Thomson
• D)Ernest Rutherford
• E)John Dalton

Differentiate between exclusive and inclusive ranges and their applications.

Understand why deviations from the mean are squared in standard deviation calculation.

Identify the methodology for computing standard deviation and its variance.

Distinguish between biased and unbiased standard deviations.

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Definitions:

Ancestral Past

Refers to events, conditions, or genealogies related to one’s ancestors, influencing genetic traits and cultural or familial inheritances.

Oedipal Complex

A concept in psychoanalytic theory introduced by Sigmund Freud which posits a child's unconscious desire for the opposite-sex parent and jealousy toward the same-sex parent.

Mother

A female parent or guardian who provides care, protection, and guidance to her offspring.

Defence Mechanisms

Psychological strategies brought into play by the unconscious mind to manipulate, deny, or distort reality in order to defend against feelings of anxiety or unacceptable thoughts and feelings.