Being radioactive means that an atomic nucleus is unstable and can spontaneously decay, releasing energy in the form of radiation. This radiation can take the form of alpha particles, beta particles, or gamma rays. Radioactive materials can be found in nature, such as uranium and radon, and can also be produced artificially. The term often relates to the potential health risks associated with exposure to radiation, which can cause damage to living tissue and increase the risk of cancer. In the context of the film "Radioactive," it reflects the impact of Marie Curie's discoveries on science and society.

Yes, radioactivity can affect humans. Exposure to radioactive materials can lead to harmful health effects, including radiation sickness, increased risk of cancer, and genetic mutations. The severity of these effects depends on the type and amount of radiation, the duration of exposure, and the individual's susceptibility. In the context of the movie "Radioactive," which tells the story of Marie Curie and her groundbreaking work with radioactivity, it highlights both the scientific advancements and the potential dangers associated with radiation exposure.

Radioactivity occurs when unstable atomic nuclei lose energy by emitting radiation in the form of particles or electromagnetic waves. This instability can be due to an excess of protons or neutrons in the nucleus, leading to a process called radioactive decay. Elements that are radioactive, known as radionuclides, can emit alpha particles, beta particles, or gamma rays as they transform into more stable forms. Common examples include uranium and radium. The emitted radiation can be harmful to living organisms, depending on the type and amount of exposure.

In the context of the movie "Radioactive," being radioactive refers to the emission of radiation from unstable atomic nuclei. This can occur in elements like uranium or radium, which release energy in the form of particles or electromagnetic waves as they decay. In a broader sense, the term can also imply a person or situation that has a harmful influence on others, often due to past actions or experiences. The film explores the life of Marie Curie and her groundbreaking work with radioactivity, highlighting both its scientific advancements and its dangerous consequences.