Physical Universe
15th Edition
ISBN: 9780077510534
Author: KRAUSKOPF
Publisher: Mcgraw-hill Higher Education (us)
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Question
Chapter 8, Problem 6MC
To determine
The quantity determined by atomic number of an element.
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Check out a sample textbook solutionStudents have asked these similar questions
A uranium nucleus emits an α particle. Assuming charge is conserved, the resulting nucleus must be
a. thorium
b. plutonium
c. radium
d. curium
6. The particles in the nucleus that have a positive charge are the
b. neutrons
a. electrons
c. protons
d. positrons
7. Elements that are not good conductors of heat or electricity are the
b. non-metals
a. metals
c. metalloids
d. solids
8. On the periodic table, the number of electrons is equal to-
b. the atomic weight
a. the mass number
c. the atomic number
d. the number of neutrons
9. Electrons are located in the
a. Electron cloud
b. cumulus cloud
c. nucleus cloud
d. fog
10. According to Dalton, these can not be created or destroyed.
b. heat
d. radioactivity
a. Matter
C. atoms
11. Group 2 on the Periodic Table is also known as the
a. Halogens
b. Noble Gases
c. Alkali metals
d. Alkaline earth metals
12. Elements on the right side of the Periodic Table are
b. non-metals
a. metals
c. liquids
d. solids
13. Elements from the Periodic Table that are malleable and ductile are called
a. metalloids
b. gases
c. metals
d. non-metals
14. Electrons that are located
a. closest to
the nucleus have…
If an atom gives off an alpha particle what happens to the mass number of the atom?
A. Decreases by two
B. Increases by two
C. Decreases by four
D. Increases by four
Chapter 8 Solutions
Physical Universe
Ch. 8 - Prob. 1MCCh. 8 - Prob. 2MCCh. 8 - Prob. 3MCCh. 8 - Prob. 4MCCh. 8 - Prob. 5MCCh. 8 - Prob. 6MCCh. 8 - Prob. 7MCCh. 8 - Prob. 8MCCh. 8 - Prob. 9MCCh. 8 - Prob. 10MC
Ch. 8 - Prob. 11MCCh. 8 - Prob. 12MCCh. 8 - Prob. 13MCCh. 8 - Prob. 14MCCh. 8 - Prob. 15MCCh. 8 - Prob. 16MCCh. 8 - Prob. 17MCCh. 8 - Prob. 18MCCh. 8 - Prob. 19MCCh. 8 - Prob. 20MCCh. 8 - Prob. 21MCCh. 8 - Prob. 22MCCh. 8 - Prob. 23MCCh. 8 - Prob. 24MCCh. 8 - Prob. 25MCCh. 8 - Prob. 26MCCh. 8 - Prob. 27MCCh. 8 - Prob. 28MCCh. 8 - Prob. 29MCCh. 8 - Prob. 30MCCh. 8 - Prob. 31MCCh. 8 - Prob. 32MCCh. 8 - Prob. 33MCCh. 8 - Prob. 34MCCh. 8 - Prob. 35MCCh. 8 - Prob. 36MCCh. 8 - Prob. 37MCCh. 8 - Prob. 38MCCh. 8 - Prob. 39MCCh. 8 - Prob. 40MCCh. 8 - Prob. 1ECh. 8 - Prob. 2ECh. 8 - Prob. 3ECh. 8 - Prob. 4ECh. 8 - Prob. 5ECh. 8 - Prob. 6ECh. 8 - Prob. 7ECh. 8 - Prob. 8ECh. 8 - Prob. 9ECh. 8 - Prob. 10ECh. 8 - Prob. 11ECh. 8 - Prob. 12ECh. 8 - Prob. 13ECh. 8 - Prob. 14ECh. 8 - The polonium isotope 84210Po undergoes alpha decay...Ch. 8 - Prob. 16ECh. 8 - Prob. 17ECh. 8 - Prob. 18ECh. 8 - Prob. 19ECh. 8 - Prob. 20ECh. 8 - Prob. 21ECh. 8 - If the half-life of a radionuclide is 1 month, is...Ch. 8 - Prob. 23ECh. 8 - One-eighth of a sample of T90227h remains...Ch. 8 - Prob. 25ECh. 8 - Prob. 26ECh. 8 - Prob. 27ECh. 8 - Prob. 28ECh. 8 - Prob. 29ECh. 8 - Prob. 30ECh. 8 - Prob. 31ECh. 8 - Prob. 32ECh. 8 - Prob. 33ECh. 8 - Prob. 34ECh. 8 - Prob. 35ECh. 8 - Prob. 36ECh. 8 - Prob. 37ECh. 8 - Prob. 38ECh. 8 - Prob. 39ECh. 8 - Prob. 40ECh. 8 - Prob. 41ECh. 8 - Prob. 42ECh. 8 - Prob. 43ECh. 8 - Prob. 44ECh. 8 - Prob. 45ECh. 8 - Prob. 46ECh. 8 - Prob. 47ECh. 8 - Prob. 48ECh. 8 - Prob. 49ECh. 8 - Prob. 50ECh. 8 - Prob. 51ECh. 8 - Prob. 52ECh. 8 - Prob. 53ECh. 8 - Prob. 54ECh. 8 - Prob. 55ECh. 8 - Prob. 56ECh. 8 - Prob. 57ECh. 8 - Prob. 58E
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- What are isotopes? Why do different isotopes of the same element have similar chemistries?arrow_forwardWhat is the half-life of thallium-206 if the activity of a sample drops from 2000 cpm to 250 cpm in 21.0 min?arrow_forward(a) Write the complete reaction equation for electron capture by 15O. (b) Calculate the energy released.arrow_forward
- Unreasonable Results The relatively scarce naturally occurring calcium isotope 48Ca has a halflife at about 21016y. (a) A small sample of this isotope is labeled as having an activity of 1.0 Ci. What is the mass of the 48Ca in the sample? (b) What is unreasonable about this result? (c) What assumption is responsible?arrow_forwardA heavy hydrogen nucleus with one proton and one neutron is called a. bi-hydrogen. b. tritium. c. deuterium. d. lithium. e. helium.arrow_forward10. What prevents gravity from pulling you through the ground to the center of Earth? Choose the best answer. A. The positive nuclei of your body's atoms repel the positive nuclei of the atoms of the ground. B. The density of the ground is greater than the density of your body. C. Atoms are bound together by chemical bonds. D. Electrons on the ground's surface and the surface of your feet repel one another.arrow_forward
- Alpha particles are best described as a. neutral particles that weigh approximately one atomic mass unit. b. electrons ejected at high speeds from a radioactive nucleus. c. high-speed particles similar in size to an electron, but oppositely charged. d. positive particles that are identical to the nucleus of an atom of 4He. e. a form of electromagnetic radiation.arrow_forward7. Cobalt-60 has many medical applications. If the half-life of cobalt-60 is 5.25 years, how long after a new sample is arrived, its amount reduces to one-third of its original amount? The material loses what percent of its energy through this decay?arrow_forward9. What is the approximate mass of an oxygen molecule, O2, if the atomic mass of oxygen is 15.9994 u?arrow_forward
- Consider the atomic species: 146C, 126C and 15,N. Which ones have the same number of neutrons? a. None of them b. 126C and 15,N C. All three O d. 146C and 15,N e. 146C and 126Carrow_forwardIsotopes of an element contain: A. the same number of protons but different number of neutrons B. the same number of neutrons but different number of protons C. equal number of protons and electrons D. equal number of nucleonsarrow_forward1. Which is more stable, A or B? A. B.arrow_forward
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