Campbell Essential Biology (7th Edition)
7th Edition
ISBN: 9780134765037
Author: Eric J. Simon, Jean L. Dickey, Jane B. Reece
Publisher: PEARSON
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Textbook Question
Chapter 2, Problem 2SQ
If you change the number of _____ the atom becomes a different element.
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If an atom has an atomic number of 6 and an atomic mass of 14, that means it must have _____ protons.
An -OH group is a(n) _______ group.
Why the Number of Electrons Matter
Since we know each element as a defined number of protons, we can also use that number to determine the number of electrons, assuming the element has no charge. Let’s write some out:
ELEMENT
NUMBER OF PROTONS
NUMBER OF ELECTRONS
C
A
B
O
C
D
Al
E
F
Na
G
H
Si
I
J
Chapter 2 Solutions
Campbell Essential Biology (7th Edition)
Ch. 2 - An atom can be changed into an ion by adding or...Ch. 2 - If you change the number of _____ the atom becomes...Ch. 2 - A nitrogen atom has 7 protons, and the most common...Ch. 2 - Why are radioactive isotopes useful to tracers in...Ch. 2 - What is chemically nonsensical about this...Ch. 2 - Why is it unlikely that two neighboring water...Ch. 2 - Which of the following is not a chemical reaction?...Ch. 2 - Some people in your study group say they dont...Ch. 2 - Explain how the unique properties of water result...Ch. 2 - Explain why it is unlikely that life could exist...
Ch. 2 - A can of cola consists mostly of sugar dissolved...Ch. 2 - For each statement, identify which major theme is...Ch. 2 - For each statement, identify which major theme is...Ch. 2 - For each statement, identify which major theme is...Ch. 2 - Animals obtain energy through a series of chemical...Ch. 2 - Interpreting Data. As shown in Figure 2.17,...Ch. 2 - Critically evaluate this statement: Its paranoid...Ch. 2 - A major source of the CO2 that causes ocean...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Oxygen (O) is a(n) _______; the oxygen we breathe (O2) is a(n) _______; and the carbon dioxide we exhale is a(n) _______. a. compound; molecule; element b. atom; compound; element c. element; atom; molecule d. atom; element; molecule e. element; molecule; compoundarrow_forwardIf you took a sample of a particular element and found that one group had a specific number of neutrons, and another group had a different number of neutrons, those two groups are called ___ of each other. Isotopes Isomers anions cations What is the tube-like structure which allows direct access into the cytoplasm from the outside?arrow_forwardElement Atomic Number Mass Number Number of Protons Number of Neutrons Number of Electrons Carbon-12 12 6 Nitrogen-14 7 7 Chlorine-35 35 17 Oxygen-16 8 Carbon-14arrow_forward
- A glycosidic bond between two monosaccharides can also be classified as a(n) ________. Question 12 options: ether bond double bond triple bond ester bondarrow_forwardA nitrogen atom has 7 protons, and the most commonisotope of nitrogen has 7 neutrons. A radioactive isotopeof nitrogen has 8 neutrons. Write the atomic number andmass number of this radioactive nitrogen as a chemicalsymbol with a subscript and superscript.arrow_forwardThe biggest difference between elements and molecules is that elements only have one TYPE of atom, while molecules have MULTIPLE types of atoms. O True Falsearrow_forward
- The atoms found in a carbohydrate are always found in this ratio Twice as many hydrogens as Oxygen and Carbon Twice as many carbons as oxygen and hydrogen No answer text provided. nobody knows they are too sImall to observearrow_forwardWhich image is an Organic molecule and which one is a inorganic molecule?arrow_forwardThe number of sodium atoms in a 50.0 g sample of sodium. atomsarrow_forward
- The bond formed between glycerol and fatty acid chain is a/an _____ bond. Ether Phosphodiester Glycosidic Esterarrow_forwardWhat atom has only one proton? a. hydrogen c. a free radical b. an isotope d. a radioisotopearrow_forwardPolonium is a rare element with 33 radioisotopes. The most common one, P210o, has 84 protons and 126 neutrons. When P210o decays, it emits an alpha particle, which is a helium nucleus 2 protons and 2 neutrons. P210o 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 why authorities failed to discover toxic amounts of P210o in the body of former KGB agent Alexander Litvinenko until after he died suddenly and mysteriously in 2006. What element does an atom of P210o change into after it emits an alpha particle.arrow_forward
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