Campbell Biology in Focus
3rd Edition
ISBN: 9780134710679
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Rebecca Orr
Publisher: PEARSON
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Question
Chapter 2.2, Problem 2CC
Summary Introduction
To determine:
The number of electrons and electron shells in fluorine along with the number of electrons needed to fill the valence shell.
Introduction:
Fluorine is an element with an atomic number 9. It belongs to halogen family of P-block and group 17 in the periodic table. It is an highly toxic gas which is pale yellow in color It is the most electronegative element and is extremely reactive. Compounds of fluorine are used industries for the manufacturing of products.
For example: sodium fluoride is used in making toothpaste and is also used in drinking water to prevent dental cavities. Hydrofluoric acid is used in making glass bulbs.
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Chapter 2 Solutions
Campbell Biology in Focus
Ch. 2.1 - Is a trace element an essenteal element? Explain.Ch. 2.1 - Prob. 2CCCh. 2.2 - A nitrogen atom has 7 protons and the most common...Ch. 2.2 - Prob. 2CCCh. 2.2 - Prob. 3CCCh. 2.3 - Why does the structure HCCH fail to make sense...Ch. 2.3 - What holds the atoms together in a crystal of...Ch. 2.3 - If you were a phamaceutical researcher, why would...Ch. 2.4 - Which type of chemical reaction occurs faster at...Ch. 2.4 - Write an equation that uses the products of...
Ch. 2.5 - Prob. 1CCCh. 2.5 - How can the freezing of water crack boulders?Ch. 2.5 - Compared with a basic solution at pH 9, the same...Ch. 2.5 - What would be the effect on the properties of the...Ch. 2.5 - Prob. 5CCCh. 2 - The reactivity of an atom arises from A. the...Ch. 2 - Which of the following statements correctly...Ch. 2 - Many mammals control their body temperature by...Ch. 2 - We can be sure that a mole of table sugar and a...Ch. 2 - Measurements show that the pH of a particular lake...Ch. 2 - Prob. 6TYUCh. 2 - What coefficients must be placed in the following...Ch. 2 - A Slice of pizza has 500 kcal. If we could burn...Ch. 2 - Draw the hydration shells that from around a...Ch. 2 - What do climate change (see Concept 1.1) and ocean...Ch. 2 - SCIENTIFIC INQUIRY Female luna moths (Actias luna)...Ch. 2 - FOCUS ON EVOLUTION The percentage of naturally...Ch. 2 - FOCUS ON ORGANIZATION Several emergent properties...Ch. 2 - SYNTHESIZE YOUR KNOWLEDGE How do cats drink?...
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Similar questions
- Why do the 3s, 3p, and 3d orbitals have the same energy in a hydrogen atom but different energies in a many- electron atom?arrow_forwardWhat are the possible energy states for atomic carbon?arrow_forwardHow many electrons must a nitrogen atom, Z = 7, gain to attain a noble gas configuration?arrow_forward
- How does the bond energy of a double bond compare to that of two single bonds between the same elements? How does this relationship explain the types of reactions that compounds with double bonds undergo?arrow_forwardElement Z forms an ion Z 3+, which contains 31 protons. What is the identity of Z, and how many electrons does Z3+have?arrow_forwardHow many different elements are there in the molecule?arrow_forward
- How does the atomic structure or composition of the versions of sodium in question C above differ from a typical sodium atom, with its atomic mass of 23?arrow_forwardWhat causes atoms to form chemical bonds? Why do some elementsnot bond readily?arrow_forwardwhat makes Isotopes of an element different from one another?arrow_forward
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