Quiz - Periodic Table of Elements Question Title * 1. Which of the following are noble gases? Select all that apply. w 0 Helium Chlorine Astatine Nitrogen Argon OK Question Title * 2. What is the atomic number of Calcium? w 0 10 20 12 19 OK Question Title * 3. The element with atomic number 29 is… w 0 Nickel Copper Vanadium Aluminum OK Question Title * 4. Which of the following are NOT solid at room temperature? Select all that apply. w 0 Beryllium Selenium Mercury Thorium Bromine Xenon OK Question Title * 5. “Groups” or “families” have similar atomic structure and are arranged _____ in the table. w 0 Vertically Horizontally OK Question Title * 6. Elements are arranged _____ into “periods.” w 0 Vertically Horizontally OK Question Title * 7. The majority of the elements in the periodic table are… w 0 Metals Nonmetals Metalloids OK Question Title * 8. How many elements are in the modern periodic table? w 0 94 109 113 118 OK Question Title * 9. The atomic number counts the number of what? w 0 Protons Electrons Neutrons Nucleons OK Question Title * 10. What are isotopes? w 0 Elements with the same number of protons but a different number of electrons Elements with the same number of protons but a different number of neutrons Elements with the same number of electrons but a different number of neutrons Elements with the same number of protons and neutrons Elements with the same number of protons and electrons OK DONE