For an isulupe or an element, une superscripts are mass numbers, and the subcripts are atomic numbers. Where the mass number (A) is the sum of the number of proton and number of neutrons in the nucleus, atomic number (Z) is the number of protons in the nu chemical symbol (X) is the symbol of the specific element. Part A Identify the nuclide produced when neptunium-237 decays by alpha emission:23 Np He + ? Express your answer as an isotope using prescripts. ▸ View Available Hint(s) Submit | ΑΣΦ Part B A chemical reaction does not occur for this question. Mass number →→→ Ax Chemical symbol Atomic number > Z ? ΑΣΦ Identify the nuclide produced when thorium-234 decays by beta emission: The + ? Express your answer as an isotope using prescripts. ▸ View Available Hint(s) ? A chemical reaction does not occur for this question. 90

Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Learning Goal:
To predict the products of alpha emission, beta emission, positron
emission, and electron capture.
Radioactivity is the spontaneous emission of radiation from an unstable
nucleus. There are five major types of radioactive decay:
1. Alpha (a) radiation consists of helium nuclei. The helium
nucleus is a small particle containing two protons and two
neutrons (He).
2. Beta (B) radiation consists of electrons. In nuclear
equations, the standard format for representing a beta
particle using superscripts and subscripts ise.
3. Positron emission results from the conversion of a proton in
the nucleus to a neutron. The ejected positron is a particle
that has the same mass as an electron but an opposite
charge. In nuclear equations, the standard format for
representing a positron using superscripts and subscripts is
de.
4. Electron capture is the capture of an inner shell electron by
a proton in the nucleus. The process emits gamma (Y
radiation and results in a proton converting to a neutron.
Gamma radiation consists of high-energy electromagnetic
radiation.
5. Gamma (1) radiation consists of high-energy radiation, and
contains no particles and thus they have no mass. In
nuclear equations, the standard format for representing
gamma radiation using superscripts and subscripts is 07-
For an islope or an element, une superscripts are mass numbers, and the supcrpis are atomic numbers.
Mass number →→→ Ax
Atomic number → Z
Where the mass number (A) is the sum of the number of proton and number of neutrons in the nucleus, atomic number (Z) is the number of protons in the nucler
chemical symbol (X) is the symbol of the specific element.
Part A
Identify the nuclide produced when neptunium-237 decays by alpha emission: 2Np He + ?
Express your answer as an isotope using prescripts.
▸ View Available Hint(s)
Submit
ΑΣΦ
▼ Part B
A chemical reaction does not occur for this question.
1
ΑΣΦ
?
90
Identify the nuclide produced when thorium-234 decays by beta emission: 234 The + ?
Express your answer as an isotope using prescripts.
▸ View Available Hint(s)
G
Chemical symbol
?
A chemical reaction does not occur for this question.
Transcribed Image Text:Learning Goal: To predict the products of alpha emission, beta emission, positron emission, and electron capture. Radioactivity is the spontaneous emission of radiation from an unstable nucleus. There are five major types of radioactive decay: 1. Alpha (a) radiation consists of helium nuclei. The helium nucleus is a small particle containing two protons and two neutrons (He). 2. Beta (B) radiation consists of electrons. In nuclear equations, the standard format for representing a beta particle using superscripts and subscripts ise. 3. Positron emission results from the conversion of a proton in the nucleus to a neutron. The ejected positron is a particle that has the same mass as an electron but an opposite charge. In nuclear equations, the standard format for representing a positron using superscripts and subscripts is de. 4. Electron capture is the capture of an inner shell electron by a proton in the nucleus. The process emits gamma (Y radiation and results in a proton converting to a neutron. Gamma radiation consists of high-energy electromagnetic radiation. 5. Gamma (1) radiation consists of high-energy radiation, and contains no particles and thus they have no mass. In nuclear equations, the standard format for representing gamma radiation using superscripts and subscripts is 07- For an islope or an element, une superscripts are mass numbers, and the supcrpis are atomic numbers. Mass number →→→ Ax Atomic number → Z Where the mass number (A) is the sum of the number of proton and number of neutrons in the nucleus, atomic number (Z) is the number of protons in the nucler chemical symbol (X) is the symbol of the specific element. Part A Identify the nuclide produced when neptunium-237 decays by alpha emission: 2Np He + ? Express your answer as an isotope using prescripts. ▸ View Available Hint(s) Submit ΑΣΦ ▼ Part B A chemical reaction does not occur for this question. 1 ΑΣΦ ? 90 Identify the nuclide produced when thorium-234 decays by beta emission: 234 The + ? Express your answer as an isotope using prescripts. ▸ View Available Hint(s) G Chemical symbol ? A chemical reaction does not occur for this question.
Learning Goal:
To predict the products of alpha emission, beta emission, positron
emission, and electron capture.
Radioactivity is the spontaneous emission of radiation from an unstable
nucleus. There are five major types of radioactive decay:
1. Alpha (a) radiation consists of helium nuclei. The helium
nucleus is a small particle containing two protons and two
neutrons (He).
2. Beta (B) radiation consists of electrons. In nuclear
equations, the standard format for representing a beta
particle using superscripts and subscripts is e.
,
3. Positron emission results from the conversion of a proton in
the nucleus to a neutron. The ejected positron is a particle
that has the same mass as an electron but an opposite
charge. In nuclear equations, the standard format for
representing a positron using superscripts and subscripts is
de.
4. Electron capture is the capture of an inner shell electron by
a proton in the nucleus. The process emits gamma (7)
radiation and results in a proton converting to a neutron.
Gamma radiation consists of high-energy electromagnetic
radiation.
5. Gamma (7) radiation consists of high-energy radiation, and
contains no particles and thus they have no mass. In
nuclear equations, the standard format for representing
gamma radiation using superscripts and subscripts is 07-
Balancing a decay equation
There are two main rules to remember when balancing nuclear equations:
1. The total of the superscripts in the reactants and products must be the same.
2. The total of the subscripts in the reactants and products must be the same.
For an isotope of an element, the superscripts are mass numbers, and the subcripts are atomic numbers:
Mass number →→→ Ax
Atomic number →→→ Z
Chemical symbol
Where the mass number (A) is the sum of the number of proton and number of neutrons in the nucleus, atomic number (Z) is the number of protons in the nucleus, and
chemical symbol (X) is the symbol of the specific element.
▼
Part A
Identify the nuclide produced when neptunium-237 decays by alpha emission: 237 Np He + ?
Express your answer as an isotope using prescripts.
▸ View Available Hint(s)
Submit
ΑΣΦ S
A chemical reaction does not occur for this question.
Part B
?
90
Identify the nuclide produced when thorium-234 decays by beta emission: 234 The + ?
Express your answer as an isotope using prescripts.
▸ View Available Hint(s)
ΑΣΦ
?
Pearson
Transcribed Image Text:Learning Goal: To predict the products of alpha emission, beta emission, positron emission, and electron capture. Radioactivity is the spontaneous emission of radiation from an unstable nucleus. There are five major types of radioactive decay: 1. Alpha (a) radiation consists of helium nuclei. The helium nucleus is a small particle containing two protons and two neutrons (He). 2. Beta (B) radiation consists of electrons. In nuclear equations, the standard format for representing a beta particle using superscripts and subscripts is e. , 3. Positron emission results from the conversion of a proton in the nucleus to a neutron. The ejected positron is a particle that has the same mass as an electron but an opposite charge. In nuclear equations, the standard format for representing a positron using superscripts and subscripts is de. 4. Electron capture is the capture of an inner shell electron by a proton in the nucleus. The process emits gamma (7) radiation and results in a proton converting to a neutron. Gamma radiation consists of high-energy electromagnetic radiation. 5. Gamma (7) radiation consists of high-energy radiation, and contains no particles and thus they have no mass. In nuclear equations, the standard format for representing gamma radiation using superscripts and subscripts is 07- Balancing a decay equation There are two main rules to remember when balancing nuclear equations: 1. The total of the superscripts in the reactants and products must be the same. 2. The total of the subscripts in the reactants and products must be the same. For an isotope of an element, the superscripts are mass numbers, and the subcripts are atomic numbers: Mass number →→→ Ax Atomic number →→→ Z Chemical symbol Where the mass number (A) is the sum of the number of proton and number of neutrons in the nucleus, atomic number (Z) is the number of protons in the nucleus, and chemical symbol (X) is the symbol of the specific element. ▼ Part A Identify the nuclide produced when neptunium-237 decays by alpha emission: 237 Np He + ? Express your answer as an isotope using prescripts. ▸ View Available Hint(s) Submit ΑΣΦ S A chemical reaction does not occur for this question. Part B ? 90 Identify the nuclide produced when thorium-234 decays by beta emission: 234 The + ? Express your answer as an isotope using prescripts. ▸ View Available Hint(s) ΑΣΦ ? Pearson
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