The Atomic Radius of Magnesium Is 160 Pm

question 56

Multiple Choice

The atomic radius of magnesium is 160 pm .Estimate its density,Given that the metal has a close-packed structure.

• A) 1.74 g.cm - 3
• B) 0.435 g.cm - 3
• C) 10.5 g.cm - 3
• D) 4.45 g.cm - 3
• E) 2.78 g.cm - 3

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Definitions:

Neurotransmitter Dysfunction

A condition in which the brain's chemical messengers (neurotransmitters) do not function properly, affecting mood, thought, and behavior.

Joint Attention

Sharing focus with other people on items or events in one’s immediate surroundings, through shared eye-gazing, pointing, referencing, or other verbal or non-verbal indications that one is paying attention to the same object.

Repetitive Behavior

Actions or sequences of behavior that are repeated frequently, often with no apparent goal or function, commonly observed in autism spectrum disorders.

Delayed Echolalia

The repetition of words or phrases spoken by others, either immediately or after a delay, often observed in autism spectrum disorder as a form of communication or self-stimulation.