CHM 1100C QUIZ 2 Latest 2024/2025 Questions and Answers 100% Correct; Rasmussen College

CHM 1100C QUIZ 2 Latest 2024/2025 Questions and Answers 100% Correct; Rasmussen College CHM 1100C QUIZ 2 Latest 2024/2025 Questions and Answers 100% Correct; Rasmussen College 1. What is the name of the following formula SF6 ? A) Monosulfur hexafluoride B) Sulfur fluoride C) Sulfur hexafluoride D) Hexafluoride monosulfur 2. What is the atomic number of Indium? A) 49 B) 45 C) 108 D) 23 3. In which group is chlorine (Cl) found? a. Alkali metals b. Noble gas c. Alkaline earth metal d. Halogens 4. What is the formula for the ionic compound barium chloride? a. Ba2 Cl b. Ba Cl3 c. Ba Cl2 d. Ba3 Cl 5. What is the electron configuration of potassium? a. 1 S22 S22 P63 S2 b. 1 S22 S22 P63 S2 3 P6 4 S1 c. 1 S22 S22 P63 S2 3 P5 d. 1 S22 S22 P63 S2 3 S23 P6 4 S2 6. How many electrons must Iodine gain to become like its closest noble gas Xenon? a. 3 b. 4 c. 2 d. 1 7. Ionization energy going up a group and going from right to left in a period. a. Increases; decreases b. Increases; increases c. Decreases; decreases d. Decreases; increases 8. As an electron falls back to ground state, it emits a of light. a. Spectrum b. Energy level c. Photon d. Quantum number 9. Which of the following is NOT one of the three parts to Dalton’s atomic theory? a. Atoms are not distinguishable from one another b. Elements are comprised of atoms, which are tiny indestructible particles c. When atoms combine to form compounds, they combine in simple whole number ratios d. All atoms of a specific element have the same mass and properties that distinguish them from atoms of another element 10. One the periodic table, atomic size from left to right across the periods and going down a group. a. Increases; decreases b. Decreases; increases c. Decreases; decreases d. Increases; increases 11. How many electrons does calcium lose to become an ion? a. 2 b. 4 c. 3 d. 1 12. Match the formula with the names of following polyatomic ions. −¿ a. Acetate NO¿ −¿ b. Phosphate C2 H 3 2 c. Cyanide d. Nitrite 3−¿ PO¿ −¿ C N¿ e. Ammonium −¿ N H ¿ 13. What is the correct order of increasing ( shortest to longest) wavelengths of electromagnetic radiation? a. Infrared, gamma rays, visible light, microwaves b. Microwaves, infrared light, visible light, gamma rays c. Gamma rays, microwaves, visible light, infrared light d. Gamma rays, visible light, infrared light, microwaves 14. What is the atomic mass of copper with isotopes copper – 63 with a mass of 62.930 and copper – 65 with a mass of 64.928 and abundances of 69.17% and 30.83% respectively. a. 63.546 amu b. 64.312 amu c. 62.930 amu d. 64.928 amu 15. What element has the symbol Au? a. Silver b. Americium c. Gold d. Copper 16. Metallic character going down a group and going from right to left across a period. a. Increases; increases b. Increases; decreases c. Decreases; decreases d. Decreases; increases 17. Whose gold foil experiment lead to the nuclear theory of the atom? a. J.J Thomson b. Albert Einstein c. Linus Pauling d. Ernest Rutherford 18. The mass number for carbon is 13. How many protons and neutrons does the isotope contain? a. Protons – 6 ; Neutrons – 8 b. Protons – 6 ; Neutrons – 7 c. Protons – 6 ; Neutrons – 6 d. Protons – 6 ; Neutrons – 3 19. What element has the symbol Es? a. Europium b. Terbium c. Fermium d. Einsteinium 20. What is the correct order of types of electromagnetic radiation for increasing energy per photon? a. Infrared light, gamma rays, visible light, microwaves b. Microwaves, infrared light, visible light, gamma rays c. Gamma rays, microwaves, visible light, infrared light d. Gamma rays, visible light, infrared light, microwaves 21. What is the atomic number for Cesium? a. 55 b. 93 c. 62 d. 89 22. Will Sulfur become a positively charged cation or a negatively charged anion? a. Anion b. Neither c. Cation d. Both 23. How many protons does oxygen- 17 contain? a. 4 b. 9 c. 8 d. 7 24. What is the atomic symbol for Yttrium? a. Mg b. Zr c. Y d. W 25. How many neutrons are contained in magnesium – 25? a. 13 b. 10 c. 14 d. 12 26. Who is credited with the organization of the periodic table? a. Clemens Winkler b. Ernest Rutherford c. Dmitri Mendeleev d. J. J. Thomas 27. What is the correct order of increasing frequency of electromagnetic radiation? a. Gamma rays, visible light, infrared light, microwaves b. Infrared light, gamma rays, visible light, microwaves c. Gamma rays, microwaves, visible light, infrared light d. Microwaves, infrared light, visible light, gamma rays 28. What are valence electrons? a. The number of protons in an atom b. The number of electrons gained by an atom c. The outermost electrons found in an atom d. The number of electrons lost by an atom 29. An electron is to a higher energy level. The electron falls back or it to a lower energy level. a. Excited; relaxed b. Quantized; emits c. Emits; quantizes d. Relaxed; excited 30. How many valence electrons does aluminum (Al) have? a. 2 b. 4 c. 1 d. 3 31. What is the mass ratio of ammonia ( NH )? a. 4.7: 1 b. 6.0: 1 c. 0.21: 1 d. 4: 1 32. What is the name of the ionic compound CuCl? a. Copper(l) Chloride b. Copper(ll) Chlorine c. Copper(ll) Chloride d. Copper(l) Chlorine 33. How many valence electrons does nitrogen (N) contain? a. 4 b. 8 c. 2 d. 5 34. In which family is potassium (k) found? a. Alkaline earth metals b. Alkali metals c. Halogens d. Noble gases 35. Chlorine has two naturally occurring isotopes: Chlorine – 35 and Chlorine – 37. What is the symbol for each of these Chlorine isotopes? 35 a. 17 Cl and 35 b. 17 Cl and 35 c. 1 8 Cl and 35 d. 1 5 Cl and 3 7 15 Cl 37 1 7 Cl 37 17 Cl 37 1 8 Cl 36. What is the atomic ratio of nitrogen-to- hydrogen in ammonia ( NH¿ ? a. 3:1 b. 1:2 c. 2:1 d. 1:3