0:27Science
What Makes an Element Unstable? Understanding Radioactive Elements Like Radium
Explore why some elements are unstable, with radium as a key example, and their role in nuclear medicine and radiation therapy.
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Radioactivity
Focused short video answers connected to Radioactivity within Environmental Science.
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0:26Science
Is Unused Nuclear Fuel Radioactive? Understanding Its Safety and Handling
Learn why unused nuclear fuel remains radioactive and how it should be handled safely to prevent radiation exposure.
0:31Science
What Causes an Isotope to Be Unstable? Understanding Nuclear Imbalance
Discover why isotopes become unstable due to proton-neutron imbalance, leading to radioactive decay for nuclear stability.
0:34Science
What Is an Unstable Isotope? Definition, Examples, and Uses
Learn what an unstable isotope is, how it decays, and its common applications in medicine, carbon dating, and nuclear energy.
0:27Science
What Are the Two Main Disadvantages of Uranium?
Discover the two major disadvantages of uranium: its radioactivity and the high costs of mining and refinement.
0:36Science
Is Used Nuclear Fuel Still Radioactive and How Is It Managed?
Discover why spent nuclear fuel remains radioactive and how it is safely stored and managed over time.
0:27Science
Which Elements Have No Unstable Isotopes? Complete List of Stable Elements
Discover which elements have no unstable isotopes, including helium, beryllium, and neon, and learn what makes their atomic nuclei stable.
0:33Science
Why Is Uranium-235 Unstable and How Does It Affect Nuclear Reactions?
Discover why Uranium-235 is unstable due to proton-neutron imbalance and how this causes radioactive decay and nuclear chain reactions.
0:42Science
What Is an Unstable Isotope and How Does It Affect Radioactive Decay?
Learn what an unstable isotope is, how it causes radioactive decay, and its uses in medicine, archaeology, and energy production.
0:34Science
Why Are Some Isotopes Unstable? Understanding Nuclear Imbalance and Decay
Discover why certain isotopes are unstable due to proton-neutron imbalance, causing radioactive decay to achieve stability.
0:34Science
Is Marie Curie's Body and Belongings Still Radioactive?
Discover why Marie Curie's remains and personal items remain radioactive and how they are safely preserved today.
0:29Science
What Is the Main Difference Between Stable and Unstable Isotopes?
Discover the key difference between stable and unstable isotopes and why radioactivity occurs in certain isotopes.
0:40Science
How Do You Make an Unstable Element Stable? Explained
Learn how unstable elements become stable through radioactive decay, fusion, and fission nuclear reactions in simple terms.
0:38Science
Why Is Uranium-235 Considered Unstable? Explained
Discover why uranium-235 is unstable and how its nuclear properties lead to radioactive decay and energy release.
0:29Science
What Causes Isotopes to Be Unstable? Understanding Nuclear Instability
Discover why isotopes become unstable due to proton-neutron imbalance and how nuclear factors affect their radioactivity.
0:34Science
Does Uranium-235 Glow? Understanding Its Luminescent Properties
Discover whether uranium-235 glows and learn about Cherenkov radiation and uranium compounds that emit visible light.
0:29Science
Why is Thorium Unstable? Unpacking Radioactivity and Decay
Discover why thorium is unstable and how alpha decay transforms it into more stable elements in our informative Q&A.
0:25Science
Is Roentgenium Radioactive? Understanding Its Properties
Discover if roentgenium is radioactive and learn about its decay properties and applications in science.