Identify the normally radioactive material in the following list. [#1066]

Plutonium is the only radioactive element in the list. Plutonium is a radioactive, silvery-gray, metallic element with the symbol Pu and atomic number 94. It has a high surface tension and viscosity compared to other metals, and tarnishes when exposed to air. Plutonium is created in a reactor when uranium atoms absorb neutrons, and is a by-product of nuclear power plants. It is the main fuel in fast neutron reactors, and more than one-third of the energy produced in most nuclear power plants comes from plutonium. Plutonium has five common isotopes, each with a different half-life, which is the time it takes to lose half of its radioactivity

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Plutonium is the only radioactive element in the list. Plutonium is a radioactive, silvery-gray, metallic element with the symbol Pu and atomic number 94. It has a high surface tension and viscosity compared to other metals, and tarnishes when exposed to air. Plutonium is created in a reactor when uranium atoms absorb neutrons, and is a by-product of nuclear power plants. It is the main fuel in fast neutron reactors, and more than one-third of the energy produced in most nuclear power plants comes from plutonium. Plutonium has five common isotopes, each with a different half-life, which is the time it takes to lose half of its radioactivity

The Sun

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The Sun

Venus can often be seen within a few hours after sunset or before sunrise as the brightest object in the sky (other than the moon). It looks like a very bright star. Venus is the brightest planet in the Solar System.

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Venus can often be seen within a few hours after sunset or before sunrise as the brightest object in the sky (other than the moon). It looks like a very bright star. Venus is the brightest planet in the Solar System.

Substitute Word: Acoustics. Acoustics deals with the generation, propagation, reception, and control of sound waves.

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Substitute Word: Acoustics. Acoustics deals with the generation, propagation, reception, and control of sound waves.

Substitute Word: radiology. Radiology encompasses the medical use of imaging techniques such as X-rays, CT scans, MRI scans, Ultrasound, etc.

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Substitute Word: radiology. Radiology encompasses the medical use of imaging techniques such as X-rays, CT scans, MRI scans, Ultrasound, etc.

Mercury and Venus

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Mercury and Venus

Marie Salomea Skłodowska–Curie
She was the first woman to win a Nobel Prize, the first person to win a Nobel Prize twice, and the only person to win a Nobel Prize in two scientific fields. Marie won her 1st Nobel Prize in 1903 in Physics with her husband for their pioneering work developing the theory of "radioactivity" - a term she coined. Marie won her 2nd Nobel Prize in 1911 in Chemistry for her discovery of the elements polonium and radium, using techniques she invented for isolating radioactive isotopes.

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Marie Salomea Skłodowska–Curie
She was the first woman to win a Nobel Prize, the first person to win a Nobel Prize twice, and the only person to win a Nobel Prize in two scientific fields. Marie won her 1st Nobel Prize in 1903 in Physics with her husband for their pioneering work developing the theory of "radioactivity" - a term she coined. Marie won her 2nd Nobel Prize in 1911 in Chemistry for her discovery of the elements polonium and radium, using techniques she invented for isolating radioactive isotopes.

Astronomy is a natural science that involves the scientific study of celestial objects (such as stars, planets, comets, galaxies, and nebulae), the universe as a whole, and the phenomena that originate beyond Earth's atmosphere. It uses principles of mathematics, physics, and chemistry to understand their origin, evolution, physical and chemical properties, and behavior. While cosmology is a branch of astronomy that focuses on the universe's origin, evolution, and large-scale structure, astronomy encompasses the broader study of all extraterrestrial objects and phenomena.

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Astronomy is a natural science that involves the scientific study of celestial objects (such as stars, planets, comets, galaxies, and nebulae), the universe as a whole, and the phenomena that originate beyond Earth's atmosphere. It uses principles of mathematics, physics, and chemistry to understand their origin, evolution, physical and chemical properties, and behavior. While cosmology is a branch of astronomy that focuses on the universe's origin, evolution, and large-scale structure, astronomy encompasses the broader study of all extraterrestrial objects and phenomena.

Elliptical

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Elliptical

Economics is the social science that studies the production, distribution, and consumption of goods and services, including wealth. Economics is divided into two classes, microeconomics and macroeconomics, and it directly affects everyday life. Economics is primarily concerned with analyzing the choices that individuals, businesses, governments, and nations make to allocate limited resources. Economic models emerged from the broader field of political economy in the late 19th century.

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Economics is the social science that studies the production, distribution, and consumption of goods and services, including wealth. Economics is divided into two classes, microeconomics and macroeconomics, and it directly affects everyday life. Economics is primarily concerned with analyzing the choices that individuals, businesses, governments, and nations make to allocate limited resources. Economic models emerged from the broader field of political economy in the late 19th century.

Substitute Word: jurisprudence.

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Substitute Word: jurisprudence.