The Light from a Small Amount of a Particular Chemical

question 217

Multiple Choice

The light from a small amount of a particular chemical element, when heated in a flame, is found to consist of a

• A) pattern of narrow, bright emissions at wavelengths that are specific to the element and different for each element.
• B) continuous spectrum of light from which certain colors are missing or absorbed, as the absorbed colors are different for different elements.
• C) pattern of narrow, bright emissions at specific wavelengths that are the same for all elements, except the relative intensities of the lines differ for different elements.
• D) continuous spectrum of light whose peak wavelength is specific to the particular element.

Grasp the evolving focus and scope of developmental psychology across the lifespan.

Comprehend the interaction between genetics, maturation, and environmental factors in development.

Understand the concept of developmental norms and their significance.

Recognize the risks associated with prenatal and postnatal exposure to environmental pollutants.

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Definitions:

Achilles Tendon

A strong and fibrous tendon that connects the muscles in the back of your calf to your heel bone, crucial for walking, running, and jumping.

Common Bursae

Small fluid-filled sacs located near joints that reduce friction between bones and soft tissues, commonly found in the shoulder, elbow, hip, and knee.

Gastrocnemius

The large muscle in the calf of the leg.

Muscles Contract

The process by which muscle fibers shorten and generate force, typically in response to a signal from the nervous system.