APEX 3.1.4 QUIZ, Lecture notes of English

Download APEX 3.1.4 QUIZ and more Lecture notes English in PDF only on Docsity! Name: ________________________________________ Period: __________________ APEX 3.1.4 QUIZ Select the choice that best answers the question or completes the statement then ENCIRCLE the letter of that choice. Question 2 2a) How does a full octet affect trends among the noble gases? 2b) Choice A full octet makes the noble gases nonreactive. A full octet makes the size of all the noble gases the same. A full octet makes the trends stronger among noble gases A full octet makes the noble gases react only with alkali metals Why do metals tend to lose electrons to form positive ions? 2c) Choice A metal atom loses its few valence electrons to form a full octet, The positive ions that are formed when metals lose electrons are more reactive than the neutral metals. They hold on tightly to electrons. They conduct electricity, which makes them lose their electrons. Why do nonmetals tend to gain electrons to form negative ions? Choice They gain electrons to balance the protons in their nuclei. They have fewer protons in their nuclei, so they attract electrons. They have low electronegativities. They gain the few electrons they need to form full octets. ‘Question 5 Sa) What makes the atomic radius change along a period in the periodic table? # Ch A More protons in the nucleus pull the electrons in, making the atomic radius smaller. B. More electrons pair in orbitals, making the atomic radius smaller. c The increased atomic mass makes the atomic radius bigger. D. More electrons in the valence shell make the radius bigger. 5b) What makes the atomic radius change down a column of the periodic table? # ch A The more valence electrons listed, the larger the atomic radius. B. The greater number of total electrons, the larger the atomic radius. @ The larger the highest energy level number, the larger the atomic radius. D. The more sublevels occupied, the larger the atomic radius. Sc) How could an electron configuration be used to predict relative atomic size? * Choice A. The more valence electrons listed, the larger the atomic radius. B. The more sublevels occupied, the larger the atomic radius. c The larger the highest energy level number, the larger the atomic radius. D. The greater number of total electrons, the larger the atomic radius Question 6 6a) Which of the following elements is the smallest? # Choice A Magnesium (Mg) B. Beryllium (Be) ce Calcium (Ca) D. Strontium (Sr) 6b) Which of the following elements is the largest? Ea Choice A. Boron (B) B. Nitrogen (N) c Oxygen (0) D. Carbon (C) 6c) Which of the following elements is the smallest? #* Choice A Phosphorus (P) B. Chlorine (Cl) c. Silicon (Si) D. sulfur (S) ‘Question 7 What trend does the first ionization energy follow, going down the periodic table? 7b) Choice The first ionization energy decreases because the outermost electron is farther from the nucleus. The first ionization energy decreases because atoms get smaller. The first ionization energy increases because there are more electrons in the atom. The first ionization energy increases because there are more protons in the nucleus. What trend does the first ionization energy follow, going across the periodic table? Fe) Choice The ionization energy increases because the atom is bigger. The ionization energy decreases because there are more valence electrons. The ionization energy decreases because the atom size is decreasing The ionization energy increases because there are more protons to pull on the electrons. What does the first ionization energy represent? Choice The energy required to remove an electron from an atom The energy given off when an electron is gained The energy required to add an electron to a new energy level The energy to remove an energy level of electrons Question 10 10a) Which of the following elements has the highest electronegativity? Ca Choice A Selenium (Se) B. Bromine (Br) c Arsenic (As) D. Germanium (Ge) 10b ) Which of the following elements has the lowest electronegativity? * A Strontium (Sr) B. Calcium (Ca) Cc. Barium (Ba) D. Magnesium (Mg) 10c ) Which of the following elements has the highest electronegativity? # Choice A Calcium (Ca) B. Nitrogen (N) te Silicon (Si) D. Rubidium (Rb)