BIOLOGY
12th Edition
ISBN: 9781264839698
Author: Raven
Publisher: MCG CUSTOM
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Textbook Question
Chapter 2, Problem 6A
The decay of radioactive isotopes involves changes to the nucleus of atoms. Explain how this differs from the changes in atoms that occur during
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Carbon-14 is a radioactive material. It contains 6 protons and 8 neutrons.
During the process of Carbon-14 decay, one of its 8 neutrons becomes a
proton and an electron is formed in the process. Based on this information,
select all that apply.
The mass number is unchanged by the decay of Carbon-14.
The mass number is changed by the decay of Carbon-14.
After decay the atom is still Carbon.
After decay the atom is not Carbon.
Atoms of the same element that differ only in the number of neutrons are known as
List three of the five ways in which a nuclear reaction differs from a chemical reaction.
Chapter 2 Solutions
BIOLOGY
Ch. 2.1 - Define an element based on its composition.Ch. 2.1 - Describe the relationship between atomic structure...Ch. 2.1 - Explain where electrons are found in an atom.Ch. 2.2 - Relate atomic structure to the periodic table of...Ch. 2.2 - Prob. 2LOCh. 2.3 - Prob. 1LOCh. 2.3 - Prob. 2LOCh. 2.3 - Prob. 3LOCh. 2.4 - Relate how the structure of water leads to...Ch. 2.4 - Prob. 2LO
Ch. 2.5 - Prob. 1LOCh. 2.5 - Prob. 2LOCh. 2.5 - Prob. 3LOCh. 2.6 - Prob. 1LOCh. 2.6 - Prob. 2LOCh. 2 - Data analysis If we call each step on the x-axis...Ch. 2 - The property that distinguishes an atom of one...Ch. 2 - If an atom has one valence electronthat is. a...Ch. 2 - An atom with a net positive charge must have more...Ch. 2 - The isotopes carbon-12 and carbon-14 differ in a....Ch. 2 - Which of the following is NOT a property of the...Ch. 2 - Ionic bonds arise from a. shared valence...Ch. 2 - A solution with a high concentration of hydrogen...Ch. 2 - Using the periodic table on page 22, which of the...Ch. 2 - Refer to the element pictured. How many covalent...Ch. 2 - Prob. 3ACh. 2 - Prob. 4ACh. 2 - If you shake a bottle of oil and vinegar then let...Ch. 2 - The decay of radioactive isotopes involves changes...Ch. 2 - Prob. 1SCh. 2 - A popular theme in science fiction literature has...Ch. 2 - Prob. 3S
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- Define the term "spontaneous" with respect to chemical reactions.arrow_forwardKnowing the atomic mass of an element allows inferences about which of the following? the number of protons plus neutrons in the element the number of protons plus electrons in the element the number of electrons in the element the number of protons in the elementarrow_forwardAtomic absorption spectroscopy is usually more sensitive than atomic emission spectroscopy because the population of the low-energy states isA) highB) lowC) zeroD) same as for high-energy statesarrow_forward
- Chlorine is an element with the symbol Cl. Draw and label atomic structure of chlorine indicating the number and locations of protons, neutrons and electrons in one atom of chlorine.arrow_forwardComplete the following table Symbol # protons # electrons # neutrons Atomic Mass Number Number 60CO 27 53 127 25 34 80arrow_forwardDistinguish between each of the following pairs of terms: Neutron and proton Atomic number and mass number Atomic weight and mass numberarrow_forward
- If we removed a neutron from an atom, what would happen to the atom? Group of answer choices: a) its mass would change b) it would have a positive charge c) it would become a different element d) it would become polar e )it would have a negative chargearrow_forwardRefer to the following figure (first three rows of the periodic table) to answer the questions below. What element does not react with other elements? Group of answer choices A. hydrogen B. helium C. oxygen D. siliconarrow_forwardfor the first 10 atoms from the periodic table determine: the atom full name and chemical symbol atomic number atomic mass how many protons, Neutrons and electrons? Abundance in naturearrow_forward
- how many hydrogen can be formed from the question abovearrow_forwardUsing collision theory, indicate which of the following statements regarding physical nature of the reactants is true: a) physical nature of reactants The physical nature of reactants does not influence the rate of reaction because reactions happen only on the molecular level. Solids, liquids or gases all influence the rate of reaction the same because they are all in the physical state. Solid state reactants react faster if the particle sizes are larger because reactions occur at the boundary surface with direct contact. Gaseous-state reactions are faster than liquid-state or solid-state reactions because collisions between reactants are more frequent.arrow_forwardAlchemists were medieval scholars and philosophers who were the forerunners of modern-day chemists. Many spent their lives trying to transform lead (atomic number 82) into gold (atomic number 79). Explain why they never succeeded.arrow_forward
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