(a)
Interpretation:
The name and formula for an ionic compound that is formed by chlorine and cesium should be predicted. The Lewis symbols for the same elements both before and after the reaction should be stated.
Concept Introduction:
The chemical formula is the way of representing the number of atoms in a compound. It is used to describe the types of atoms and their number in a compound or in a molecule.
(b)
Interpretation:
The name and formula for an ionic compound that is formed by calcium and astatine should be predicted. The Lewis symbols for the same elements both before and after the reaction should be stated.
Concept Introduction:
The chemical formula is the way of representing the number of atoms in a compound. It is used to describe the types of atoms and their number in a compound or in a molecule.
(c)
Interpretation:
The name and formula for an ionic compound that is formed by aluminum and sulfur should be predicted. The Lewis symbols for the same elements both before and after the reaction should be stated.
Concept Introduction:
The chemical formula is the way of representing the number of atoms in a compound. It is used to describe the types of atoms and their number in a compound or in a molecule.
(d)
Interpretation:
The name and formula for an ionic compound that is formed by potassium and tellurium should be predicted. The Lewis symbols for the same elements both before and after the reaction should be stated.
Concept Introduction:
The chemical formula is the way of representing the number of atoms in a compound. It is used to describe the types of atoms and their number in a compound or in a molecule.
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Chapter 3 Solutions
OWLV2 FOR OXTOBY/GILLIS/BUTLER'S PRINCI
- Draw Lewis diagrams for the following ions. In the formula the symbol of the central atom is given first. (Hint:The valence octet may be expanded for the central atom.) (a) BrO4 (b) PCl6 (c) XeF6+arrow_forward3-58 In Section 2-3B, we saw that there are seven diatomic elements. (a) Draw Lewis structures for each of these diatomic elements. (b) Which diatomic elements are gases at room temperature? Which are liquids? Which are solids?arrow_forwardWhy do nonmetals tend to form anions rather than cations?arrow_forward
- Write Lewis dot symbols for the following atoms and ions. (a) I (b) I− (c) S (d) S2−arrow_forwardWhich of the following statements are true regarding a covalent bond between nitrogen and oxygen atoms in a nitric oxide, NO, molecule? (a) Valence electrons are shared between nitrogen and oxygen atoms. (b) Bonding electrons are found only between the bonded atoms. (c) The bond length is greater than the sum of the two atomic radii. (d) Energy is required to break a covalent bond.arrow_forwardWhich of the following statements are true regarding an ionic bond between calcium and oxygen in an CaO formula unit? (a) Calcium ions and oxide ions bond by covalent attraction. (b) Calcium atoms lose electrons and oxygen atoms gain electrons. (c) The ionic radius of a calcium ion is less than its atomic radius. (d) Breaking an ionic bond between calcium and oxygen releases energy.arrow_forward
- Na+ forms an “ionic bond” (i.e. an electrostatic attraction) with the OCN− ion. (a) Draw the full Lewis structure of the ionic compound. Be sure to show how you have derived this. (The ionic compound as a whole, not just OCN-) (b) Which atom in the OCN− anion is the sodium cation most likely to attract? Explain.arrow_forwardAnswer true or false. (a) The octet rule refers to the chemical bonding patterns of the first eight elements of the Periodic Table. (b) The octet rule refers to the tendency of certain elements to react in such a way that they achieve an outer shell of eight valence electrons. (c) In gaining electrons, an atom becomes a positively charged ion called a cation. (d) When an atom forms an ion, only the number of valence electrons changes; the number of protons and neutrons in the nucleus does not change. (e) In forming ions, Group 2A elements typically lose two electrons to become cations with a charge of 12. (f) In forming an ion, a sodium atom (1s22s22p63s1) completes its valence shell by adding one electron to fill its 3s shell (1s22s22p63s2). (g) The elements of Group 6A typically react by ac- cepting two electrons to become anions with a charge of 22. (h) With the exception of hydrogen, the octet rule applies to all elements in periods 1, 2, and 3. (i) Atoms and the ions derived from…arrow_forwardWhich of the following statements are true regarding the formation of an ionic bond between a metal and a nonmetal? (a) The atomic radius of a metal atom is greater than its ionic radius. (b) The atomic radius of a nonmetal atom is less than its ionic radius. (c) Energy is released in the formation of an ionic bond.arrow_forward
- Classify the bond formed between each pair of atoms as covalent, polar covalent, or ionic.(a) Sr and F (b) N and Cl (c) N and Oarrow_forwardAnswer true or false. (a) A binary covalent compound contains two kinds of atoms. (b) The two types of atoms in a binary covalent compound are named in this order: first the more electronegative element and then the less electronegative element.arrow_forwardUsing Lewis electron-dot symbols to depict the monatomic ions formed from each of the following reactants, predict the formula of the compound the ions produce.(Type your answer using the format CO2 for CO2.) (a) O and Ca (b) N and Mg (c) Br and Li (d) K and Parrow_forward
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