marker.com The question is based on the following passage. Chemists have determined that elements with atomic numbers greater than 92 are all radioactive. In general, their half-lives are much shorter than the age of the universe. This means that they no longer exist in nature and have all been artificially produced by scientists in nuclear reactions. Elements 93 through 105 in the periodic table have been created and named, and scientists have claimed discovery of elements 106 and 107. The transuranium elements, as they are called, become less stable as the atomic number and mass increase. For example, element number 93, neptunium, has a half-life of two million years, while element number 104, kurchatovium, has a half-life of 70 seconds. The transuranium elements are the heaviest elements that exist and are readily fissionable when subjected to nuclear bombardment. Chemists studying these elements and the periodic table predict that stable elements may be found around atomic numbers 114 or 126. Based on the information in the passage, which of the following relationships appears to be true for those elements 93 through 105? A. The greater the radioactivity, the greater the half-life. B. The greater the atomic number, the higher the half-life. C. The greater the atomic number, the lower the half-life.

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### Understanding Transuranium Elements

**Introduction to Transuranium Elements**

Chemists have identified that elements with atomic numbers greater than 92 are radioactive. Generally, their half-lives are significantly shorter than the age of the universe, which implies that these elements do not naturally exist today. Instead, they are synthesized by scientists through nuclear reactions.

**Properties of Transuranium Elements**

Elements ranging from atomic number 93 to 105 have already been synthesized and named. Additionally, there have been claims of discovery for elements 106 and 107. These elements, known as the transuranium elements, exhibit decreasing stability as their atomic number and mass increase. For instance:

- **Neptunium (Element 93)**: Has a half-life of two million years.
- **Kurchatovium (Element 104)**: Has a half-life of just 70 seconds.

**Stability and Nuclear Properties**

The transuranium elements are among the heaviest and are easily fissionable when subjected to nuclear bombardment. Scientists studying these elements and the periodic table predict that more stable elements might be found around atomic numbers 114 or 126.

**Quiz Question for Understanding**

Based on the information provided, determine which of the following relationships is true for elements with atomic numbers from 93 to 105:

A. The greater the radioactivity, the greater the half-life.

B. The greater the atomic number, the higher the half-life.

C. The greater the atomic number, the lower the half-life.

Feel free to review the properties and trends of transuranium elements to answer this question accurately.
Transcribed Image Text:### Understanding Transuranium Elements **Introduction to Transuranium Elements** Chemists have identified that elements with atomic numbers greater than 92 are radioactive. Generally, their half-lives are significantly shorter than the age of the universe, which implies that these elements do not naturally exist today. Instead, they are synthesized by scientists through nuclear reactions. **Properties of Transuranium Elements** Elements ranging from atomic number 93 to 105 have already been synthesized and named. Additionally, there have been claims of discovery for elements 106 and 107. These elements, known as the transuranium elements, exhibit decreasing stability as their atomic number and mass increase. For instance: - **Neptunium (Element 93)**: Has a half-life of two million years. - **Kurchatovium (Element 104)**: Has a half-life of just 70 seconds. **Stability and Nuclear Properties** The transuranium elements are among the heaviest and are easily fissionable when subjected to nuclear bombardment. Scientists studying these elements and the periodic table predict that more stable elements might be found around atomic numbers 114 or 126. **Quiz Question for Understanding** Based on the information provided, determine which of the following relationships is true for elements with atomic numbers from 93 to 105: A. The greater the radioactivity, the greater the half-life. B. The greater the atomic number, the higher the half-life. C. The greater the atomic number, the lower the half-life. Feel free to review the properties and trends of transuranium elements to answer this question accurately.
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