Transuranium elements that have half-life more than 1 year have to be determined using table 11-2 as the information source. Concept Introduction: Radioactive nuclides undergo disintegration by emission of radiation. All the radioactive nuclide do not undergo the decay at a same rate. Some decay rapidly and others decay very slowly. The nuclear stability can be quantitatively expressed by using the half-life. Radioactive decay happens naturally. This can also be done artificially in the laboratory by means of bombardment reaction. Bombardment reaction produces synthetic nuclides. These synthetic radionuclides are known as transuranium elements. This is because they occur after uranium. The atomic number of transuranium elements is from 93 to 118.

Question

Ch.23 How is Salmonella able to cross from the intestines into the blood? A. it is so small that it can squeeze between intestinal cells B. it secretes a toxin that induces its uptake into intestinal epithelial cells C. it secretes enzymes that create perforations in the intestine D. it can get into the blood only if the bacteria are deposited directly there, that is, through a puncture — Which virus is associated with liver cancer? A. hepatitis A B. hepatitis B C. hepatitis C D. both hepatitis B and C — explain your answer thoroughly

Answer 1

Question

Chapter 11, Problem 11.45EP

(a)

Interpretation Introduction

Interpretation:

Transuranium elements that have half-life more than 1 year have to be determined using table 11-2 as the information source.

Concept Introduction:

Radioactive nuclides undergo disintegration by emission of radiation. All the radioactive nuclide do not undergo the decay at a same rate. Some decay rapidly and others decay very slowly. The nuclear stability can be quantitatively expressed by using the half-life.

Radioactive decay happens naturally. This can also be done artificially in the laboratory by means of bombardment reaction. Bombardment reaction produces synthetic nuclides. These synthetic radionuclides are known as transuranium elements. This is because they occur after uranium. The atomic number of transuranium elements is from 93 to 118.

(b)

Interpretation Introduction

Interpretation:

Transuranium elements that have half-life less than 1 day have to be determined using table 11-2 as the information source.

Concept Introduction:

Radioactive nuclides undergo disintegration by emission of radiation. All the radioactive nuclide do not undergo the decay at a same rate. Some decay rapidly and others decay very slowly. The nuclear stability can be quantitatively expressed by using the half-life.

Radioactive decay happens naturally. This can also be done artificially in the laboratory by means of bombardment reaction. Bombardment reaction produces synthetic nuclides. These synthetic radionuclides are known as transuranium elements. This is because they occur after uranium. The atomic number of transuranium elements is from 93 to 118.

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