What Is Life? A Guide to Biology with Physiology
4th Edition
ISBN: 9781319065447
Author: Jay Phelan
Publisher: W. H. Freeman
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Chapter 2, Problem 2MC
Summary Introduction
Introduction:
Electrons orbit at different levels (or shells) around the nucleus.
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Hydrogen bonds are a type of _____________ bond or interaction. a. ionic b. dipole–dipole c. dipole-induced dipole d. London dispersion
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Select one:
a. True
b. False
Smoke detectors in homes and apartments contain Am-241,
which undergoes alpha decay. What is the abbreviated
symbol of the "daughter nuclide" produced in the nuclear
reaction? Hint: atomic number of Am is 95.
A. a particle
B. Pu-237
C. Am-237
D. He - 4
Е. Np-237
Chapter 2 Solutions
What Is Life? A Guide to Biology with Physiology
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- Polonium is a rare element with 33 radioisotopes. The most common one, 210Po, has 82 protons and 128 neutrons. When 210Po decays, it emits an alpha particle, which is a helium nucleus (2 protons and 2 neutrons). 210Po decay is tricky to detect because alpha particles do not carry very much energy compared to other forms of radiation. For example, they can be stopped by a single sheet of paper or a few inches of air. That is one reason that authorities failed to discover toxic amounts of 210Po in the body of former KGB agent Alexander Litvinenko until after he died suddenly and mysteriously in 2006. What element does an atom of 210Po become after it emits an alpha particle?arrow_forwardPolonium is a rare element with 33 radioisotopes. The most common one, 210Po, has 82 protons and 128 neutrons. When 210Po decays, it emits an alpha particle, which is a helium nucleus (2 protons and 2 neutrons). 210Po decay is tricky to detect because alpha particles do not carry very much energy compared to other forms of radiation. They can be stopped by, for example, a sheet of paper or a few inches of air. This property is one reason why authorities failed to discover toxic amounts of 210Po in the body of former KGB agent Alexander Litvinenko until after he died suddenly and mysteriously in 2006. What element does an atom of 210Po decay into after it emits an alpha particle?arrow_forwardOn the periodic table of the elements, mercury (Hg) hasan atomic number of 80 and a mass number of 200.59.It has seven stable isotopes. The most abundant of theseprobably have ________.a. about 80 neutrons eachb. fewer than 80 neutrons eachc. more than 80 neutrons eachd. more electrons than neutronsarrow_forward
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