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5/39 MCQs for:

Radioactivity

Which radiation is the least penetrating?

X-ray.

Beta.

Gamma.

Alpha.

Radiation sickness occurs due to:

Eating fruits.

Walking in sunlight.

Short-term exposure to high doses.

Drinking water.

Which isotope is commonly used in medical imaging?

Iodine-131.

Plutonium-239.

Uranium-238.

Carbon-14.

Which isotope is used for carbon dating?

Uranium-238.

Plutonium-239.

Iodine-131.

Carbon-14.

An atom is represented by ¹⁷₈X. Which of the nuclides below is an isotope of this atom?

¹⁷₉X.

¹⁷₇X.

¹⁶₈X.

¹⁶₇X.