Answer:
A physical property is any property that is measurable, whose value describes a state of a physical system. The changes in the physical properties of a system can be used to describe its changes between momentary states. Physical properties are often referred to as observables. They are not modal properties.
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4. unstable and spontaneously emits alpha particles
Explanation:
Nuclei of uranium-28 atoms are typically unstable and spontaneously emits alpha particles.
Unstable nuclei are nuclei whose neutron/proton ratio is different from its stability ratio.
- Most nuclei heavier than Bi-209 are naturally radioactive.
- Nuclei of U-238 is unstable and it spontaneously disintegrates.
²³⁸₉₂U → ²³⁴₉₀Th + ⁴₂He
- The uranium decays to produce thorium nuclei with the emission of alpha particles, He.
Learn more:
Nuclear decay brainly.com/question/10094982
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Answer: You are made of mostly 6 elements: Oxygen, Carbon, Hydrogen, Nitrogen, Calcium, and Phosphorus. Some of these elements combine to form compounds in your body.
Explanation: