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Difference between Radon and Radium

Difference between Radon and Radium

Understanding the subtle nuances between radon and radium can be confusing for those unfamiliar with chemistry, nuclear physics, or radiation. Both are elements from the periodic table, but what differentiates one from the other? This blog post explores just that – breaking down the properties of each element and explaining why they are distinct from each other. In addition to delving into their differences in atomic structure and toxicity levels, we’ll also discuss their various applications in industry as well as how people use them safely on a day-to-day basis.

What is Radon?

Radon is a naturally occurring gas that is found in the environment. It is formed when uranium, thorium, and radium break down in air, soil, and water. Radon does not dissipate quickly; instead, it can seep into enclosed spaces such as houses through cracks in walls and foundations. Radon is the second leading cause of lung cancer after smoking and has been linked to an increased risk of developing other respiratory diseases.

As Radon is odorless and tasteless, it cannot be detected without professional testing or specialized equipment; therefore, radon testing should be conducted at least once per year to ensure that concentrations are not too high. Taking preventative measures against Radon saves lives!

What is Radium?

  • Radium is a radioactive element that was discovered in 1898 by Marie Curie and her husband, Pierre. Radium emits ions of alpha, beta, and gamma radiation and has an atomic weight of 226 with 88 protons and 88 electrons. Radium has important applications in industry, medicine, and research due to its spontaneously decaying nature.
  • This means that when radium decays it releases energy which makes it ideal for use in radiation treatments as well as imaging equipment like X-rays and PET scans.
  • Radium is also used to manufacture self-luminous paint for glow-in-the-dark watches, radios, clocks, and other consumer products. Radium remains an important element to both science and industry due to its unique properties.

Difference between Radon and Radium

Radon and Radium may sound the same, but they are two incredibly different elements. Radon is a gas found in the Earth’s atmosphere, while Radium is a radioactive metal similar to elements such as uranium. Radon has no known benefit, and can only be dangerous if it accumulates to high levels indoors because it is known to cause lung cancer. Radium on the other hand has several beneficial properties as its radiation can be used for medical purposes and scientific research.


Radon is a gas that comes from the ground and can be found in both indoor and outdoor air. Radium is a metal found in rocks and soil. Both are radioactive, but radon is more dangerous because it’s odorless and invisible, so you can’t tell when you’re being exposed to it. Get your home tested for radium if you live in an area where uranium mining is common, or if you live near a nuclear power plant.

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