Science, Tech, Math › Science Atomic Structure Chemistry Quiz Atomic Structure, Electron Configuration, Oxidation, and More Share Flipboard Email Take this chemistry quiz to test yourself about atomic structure, including nuclear structure and electron configuration. Mike Agliolo / Getty Images Science Chemistry Molecules Basics Chemical Laws Periodic Table Projects & Experiments Scientific Method Biochemistry Physical Chemistry Medical Chemistry Chemistry In Everyday Life Famous Chemists Activities for Kids Abbreviations & Acronyms Biology Physics Geology Astronomy Weather & Climate By Anne Marie Helmenstine, Ph.D. Anne Marie Helmenstine, Ph.D. Facebook Twitter Chemistry Expert Ph.D., Biomedical Sciences, University of Tennessee at Knoxville B.A., Physics and Mathematics, Hastings College Dr. Helmenstine holds a Ph.D. in biomedical sciences and is a science writer, educator, and consultant. She has taught science courses at the high school, college, and graduate levels. Learn about our Editorial Process Updated on March 06, 2017 1. A beryllium atom has 4 protons, 5 neutrons, and 4 electrons. What is the mass number of this atom? 4 5 8 9 13 Correct Wrong The mass number is the number of protons and neutrons in the nucleus. For this question, you add the 4 protons and 5 neutrons to get an answer of 9. 2. The lowest principal quantum number for an electron is: 0 1 2 3 Correct Wrong The principal quantum number is an indication of the size of an electron orbital. It has a positive integer value, but can never be 0. So, the lowest number is 1. 3. An electron dot symbol for an element shows that element's symbol and an arrangement of dots that indicates the: atomic number atomic mass total number of electrons number of electrons in the outer energy level Correct Wrong A Lewis structure or electron dot structure shows the unbonded electron pairs. The unbonded electrons are the valence electrons or ones in the outer electron shell. 4. The most common oxidation number for silicon in a compound would be: +1 +2 +3 +4 Correct Wrong There is a set of rules used to determine oxidation numbers. The oxidation number of a free element is always zero, but since this question asks about silicon in a compound, you look at the number of electrons needed to fill its valence shell. You can figure this out from the electron configuration. The position on the periodic table usually gives the answer, too. Silicon is in the same group as carbon. Silicon usually displays the +4 oxidation state. 5. Which sublevel can by occupied by a maximum of 10 electrons? s p d f Correct Wrong There's a handy chart you can draw to figure out electron configurations, so you don't have to memorize them. There are 2 electrons in the s sublevel, 6 in the p sublevel, 10 in the d sublevel, and 14 in the f sublevel. 6. The two main parts of an atom are its: nucleus and electron energy levels nucleons and protons oxidation number and valence protons and neutrons protons and electrons Correct Wrong The two parts of an atom are its nucleus, which consists of protons and neutrons, and the electrons that orbit the nucleus. 7. Which element is most likely to form a covalent compound? carbon cesium magnesium sodium Correct Wrong The two main types of chemical bonds are ionic bonds and covalent bonds. Metals tend to form ionic bonds. Nonmetals are more likely to form covalent bonds. You can predict whether two atoms will form ionic or covalent bonds by comparing the difference between their electronegativity values. Carbon is the only nonmetal listed in the question. 8. Chlorine's electron dot diagram is Cl surrounded by seven dots. An atom with an identical arrangement is atomic number: 7 9 10 15 19 Correct Wrong The electron dot structure depends on the number of valence electrons. To answer the question, you need to know the electron configuration of the atoms to see which one has 7 unbonded electrons, like chlorine. Fluorine, element number 9, has 2 electrons in the s sublevel (K shell). The L shell is incompletely filled, with 7 electrons. 9. Orbitals are not occupied by: 0 electrons 1 electron 2 electrons 3 electrons Correct Wrong If you had trouble with this question, you might wish to review quantum numbers and electron orbitals. Orbitals never contain 3 electrons. 10. The number of orbitals in the second principal energy level of an atom (n = 2) is: 1 2 4 9 16 Correct Wrong This is another question involving quantum numbers. If n = 2, then there may be 4 orbitals (1 s orbital and 3 p orbitals). Atomic Structure Chemistry Quiz You got: % Correct. Atomic Bomb You bombed the atomic structure quiz. It's like an atomic bomb, except different.. FPG / Getty Images You bombed the quiz, but it's not for a grade, so don't worry! Plus, you learned a lot, just taking the quiz. If you're serious about learned about atoms, start by reviewing the basics. You could also try the atom basics quiz to make sure you know the fundamentals about the building blocks of matter. Share Your Results Share Flipboard Email Atomic Structure Chemistry Quiz You got: % Correct. Average Atomic Structure Know-How You're building your knowledge about atomic structure.. Paper Boat Creative / Getty Images While you're comfortable with some aspects of atomic structure, you haven't nailed down the details yet. From here, you can review general chemistry topics or switch gears and take a quiz to see how well you know general science trivia. Share Your Results Share Flipboard Email Atomic Structure Chemistry Quiz You got: % Correct. A Plus in Atomic Theory You know a lot about atomic structure.. ALFRED PASIEKA / Getty Images Great job! You did well on the atomic structure quiz. Ready for another quiz? See how well you do on the 20 questions chemistry test. Ready for something different? Learn interesting science trivia facts. Share Your Results Share Flipboard Email