Between the release of a radioactive nuclide of Sr and a radioactive nuclide of Xe , the greater health hazard for the environment is to be stated. Reason for the importance of chemical properties of a radioactive substance in assessing its potential health hazard is to be stated. Concept introduction: Sr does not possess radioactive properties but its isotope 90 Sr has high radioactive properties and it undergoes beta decay. It causes damage to humans as well as to the environment. To determine: The more hazardous nuclide and importance of chemical properties of radioactive substance in assessing its potential health hazard.

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Learning Goal: This question reviews the format for writing an element's written symbol. Recall that written symbols have a particular format. Written symbols use a form like this: 35 Cl 17 In this form the mass number, 35, is a stacked superscript. The atomic number, 17, is a stacked subscript. "CI" is the chemical symbol for the element chlorine. A general way to show this form is: It is also correct to write symbols by leaving off the atomic number, as in the following form: atomic number mass number Symbol 35 Cl or mass number Symbol This is because if you write the element symbol, such as Cl, you know the atomic number is 17 from that symbol. Remember that the atomic number, or number of protons in the nucleus, is what defines the element. Thus, if 17 protons are in the nucleus, the element can only be chlorine. Sometimes you will only see 35 C1, where the atomic number is not written. Watch this video to review the format for written symbols. In the following table each column…

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Chapter 19, Problem 63E

Interpretation Introduction

Interpretation: Between the release of a radioactive nuclide of Sr and a radioactive nuclide of Xe , the greater health hazard for the environment is to be stated. Reason for the importance of chemical properties of a radioactive substance in assessing its potential health hazard is to be stated.

Concept introduction: Sr does not possess radioactive properties but its isotope 90Sr has high radioactive properties and it undergoes beta decay. It causes damage to humans as well as to the environment.

To determine: The more hazardous nuclide and importance of chemical properties of radioactive substance in assessing its potential health hazard.

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Learning Goal: This question reviews the format for writing an element's written symbol. Recall that written symbols have a particular format. Written symbols use a form like this: 35 Cl 17 In this form the mass number, 35, is a stacked superscript. The atomic number, 17, is a stacked subscript. "CI" is the chemical symbol for the element chlorine. A general way to show this form is: It is also correct to write symbols by leaving off the atomic number, as in the following form: atomic number mass number Symbol 35 Cl or mass number Symbol This is because if you write the element symbol, such as Cl, you know the atomic number is 17 from that symbol. Remember that the atomic number, or number of protons in the nucleus, is what defines the element. Thus, if 17 protons are in the nucleus, the element can only be chlorine. Sometimes you will only see 35 C1, where the atomic number is not written. Watch this video to review the format for written symbols. In the following table each column…

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