1. When forming ions, metals typically do which of the following? lose electrons

Question

1. When forming ions, metals typically do which of the following? lose electrons to form negatively charged ions gain protons to form cations gain electrons to form anions lose electrons to form positively charged ions A) B) 2. Which pair of elements will form an ionic compound? C) D) A) B) sulfur and oxygen copper and iron iron and chlorine bromine and oxygen 3.How many protons and electrons are present in 27 protons, 27 electrons 27 protons, 29 electrons A) B) 27 protons, 25 electrons 29 protons, 27 electrons ) 4. A sulfur atom has a larger atomie radius than an oxygen atom. Which statement best explains why? A) Sulfur contains more electrons than oxygen does. B) Sulfur contains more protons than oxygen does. The valence shell of sulfur is farther away from the nucleus than the valence shell of oxygen is. The larger number of protons in an oxygen atom pulls its electrons closer to the nucleus than a sulfur atom. D) 5. Which isotope is not possible? A) H B) Be 241 E) More than one of the above isotopes is not possible. ? 6-How many neutrons are in the isotope 2 A) 238 B) 146 C) 92 D) 330 7. Which of the following statements is not correct? A) Ionic compounds have very high melting points compared to covalent compounds. B) A cation is positively charged, and has less electrons than the neutral atom. C) Ionic bonds result from the sharing of electrons between two atoms. D) An iodide ion has 53 protons and 54 electrons. E) More than one of the above statements is not correct.

Explanation / Answer

1. (D)

2. (C)

3. (C)

4. (C)

5. (B)

6. (B)

7. (C)

8. (D)

9. (D)

10. (B)

11. (B)

12. (A)

13. (B)

14. (D)

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