Consider three isolated ions: Mg²+, O²- and Nat. Which is true about these ions? a. All of the ions are the same size. b. All of the ions have the same numbers of protons. c. All of the ions have the same electrostatic attraction between protons and electrons. d. All of these ions have the same number of electrons present. e. a and d

Consider three isolated ions: Mg²+, O²- and Nat. Which is true about these ions? a. All of the ions are the same size. b. All of the ions have the same numbers of protons. c. All of the ions have the same electrostatic attraction between protons and electrons. d. All of these ions have the same number of electrons present. e. a and d

Chemistry: Matter and Change

1st Edition

ISBN:9780078746376

Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Publisher:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Chapter10: The Mole

Section: Chapter Questions

Problem 208A

See similar textbooks

Similar questions

7. When salt is mixed in water, what is produced? a. a substance b. a compound 8. Water is an example of a/an a. Monoatomic ion b. Polyatomic ion 9. What is common to both nickel and copper? They are both in the same period. b. They are both in the same group. 10. Which statement is true? C. d. a mixture Both a and c C. Oxygen hydride d. Both b and c c. d. They are both metalloids Both a and b a. HNO₂ is called nitric acid. C. b. Sodium hydroxide contains a polyatomic d. Both b and c anion. Iodide is a mono atomic cation.
Consider three isolated ions: Mg2+, 0²- and Na*. Which is true about these ions? A. All of the ions are the same size. B. All of the ions have the same numbers of protons. C. All of the ions have the same electrostatic attraction between protons and electrons. D. All of these ions have the same number of electrons present. E. A and D O C 0 0 0 0 0 UBD w OB OD OE OA
1. In a nonpolar covalent bond, A. electrons are shared equally between the two atoms. B. electrons are shared unequally between the two atoms. C. electron(s) are transferred from the cation to the anion. D. protons are shared unequally between the two atoms.
What happens to the electrons in ionic compounds? A. they get shared between the atoms B. Atoms either gain or lose electrons C. Nothing happens to the electrons
Which elements can form -2 ions? B. Gric beryllium and calcium b. lithium and fluorine magnesium and chlorine d. C. oxygen and sulfur 10. Which pair of elements will most likely exhibit similar chemical properties? hydrogen and helium nitrogen and phosphorus b. potassium and krypton di 11. What element will be the best conductor of electricity? C. sodium and aluminum helium b. phosphorus potassium d. sulfur C. 96 Exploring Life Through Science-Chemistry
When an atom gains electrons, ita. forms a negatively charged ion.b. forms a positively charged ion.c. forms covalent bonds.d. forms ionic bonds.e. gains atomic mass.
2. A new fictitious element was discovered. It is a metal named jolmium, J, and it has three valence electrons. If it combines with iodine it forms jolmium iodide. Answer the following questions. a. Is this compound ionic or covalent? b. What is the formula of jolmium iodide? c. What is the charge on the metal J in this compound? d. Explain how you know that is the charge?
Multiple Choice |1. Ions that are formed from one atom are known as a. polyatomic ions. b. monatomic ions. c. cations. d. anions. 2. A group of atoms united by covalent bonds is a(an) a. cation. b. molecule. c. ionic compound. d. octet. 3. Ionic compounds are always a. electrically neutral. b. made up of atoms that share electrons c. polyatomic cations. d. the same as molecules. 4. To form a bond, atoms share a. neutrons. b. protons. c. inner-shell electrons. d. valence electrons. 5. A positively charged ion attracts a(an) a. neutral jon. b. cation. c. anion. d. proton. 6. Ionic compounds a. have high melting points. b. are brittle. c. are good conductors in their liquid state. d. all of the above. 7. During a chemical reaction, a. new elements are produced. b. atoms are destroyed. c. atoms are rearranged. d. elements are destroyed. |8. An equation is balanced by a. changing subscripts. b. erasing elements as necessary. c. adding coefficients. d. adding elements as necessary. 9. A…
crobial Corning Gorilla Glass 1. Identify the following as a homogeneous mixture, a heterogeneous mixture, an element, or a chemical compound. a. air b. pancake batter brass (an alloy of copper and zinc) C. d. table salt (sodium chloride) 2. Show the electron dot diagrams for the following elements. a. K b. Se C. Не 3. Identify the following substances as ionic or covalent. a. P4 b. CO2 с. TiCl,
Write the formula for the ionic compound formed from each pair of elements. a. sodium and bromine c. magnesium and iodine b. barium and oxygen d. lithium and oxygen
59. An atom of aluminum gives away three electrons when it joins with one or more non-metal atoms to form an ionic compound. What ratio of aluminum and each non-metal atom below would be required to have a net charge of zero? a. chlorine, which can gain one electron b. nitrogen, which can gain three electrons c. oxygen, which can gain two electrons
Which two elements could form an ionic compound? A. Boron and neon (Boron dan neon) B. Carbon and oxygen (Karbon dan oksigen) C. Lithium and fluorine (Litium dan fluorin) D. Hydrogen and nitrogen (Hidrogen dan nitrogen)