Of the Following Elements,which Has the Lowest Electronegativity

question 6

Multiple Choice

Of the following elements,which has the lowest electronegativity?

• A)Sr
• B)I
• C)Ba
• D)At

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Definitions:

Refractory Period

Period following effective stimulation during which excitable tissue, such as heart muscle, fails to respond to a stimulus of threshold intensity.

Cardiac Muscle

Muscle tissue found only in the heart, characterized by its ability to contract involuntarily and rhythmically.

Tetanic Contractions

Sustained muscle contractions that occur when the muscles do not relax between stimuli, leading to a smooth and steady contraction.

Depolarization

The process in which a cell's membrane potential becomes less negative, leading towards an action potential in nerve and muscle cells.