Skip to content Home Questions Play Progress Daily Challenge Questions › Chemistry › Periodic Table Questions QUESTION Which Group 13 element has atomic number 113 and the commonly tabulated predicted electronic configuration [Rn]5f¹⁴6d¹⁰7s²7p¹? Open question → QUESTION What is the atomic number of Bohrium which is named after physicist Niels Bohr, one of the founders of quantum theory? Open question → QUESTION Which element has atomic number 87, no known biological role and a longest-lived isotope with a half-life of about 22 minutes? Open question → QUESTION In which numbered group of the periodic table is the element with electronic configuration [He]2s²2p⁶? Open question → QUESTION Which soft, silvery lanthanide metal has atomic number 59? Open question → QUESTION Which German chemist was the first to show a graphical representation of the periodicity of an atomic volume plotted against atomic weight? Open question → QUESTION Which of the following options are all transition metals? Open question → QUESTION Consider the following statements about Group 0 elements in the modern periodic table: 1. Group 0 elements are commonly referred to as inert gases… Open question → QUESTION The behaviour of lithium is similar to that of magnesium. This sort of similarity is commonly referred to as: Open question → QUESTION Among the following chemical elements, which one belongs to the group of alkali metals in the periodic table? Open question → QUESTION Which element posed a problem of definite placement in Mendeleev’s periodic classification because it resembled both alkali metals and halogens? Open question → QUESTION On what main basis did Dmitri Mendeleev organise elements in his periodic table? Open question → QUESTION What is the energy released when an electron is added to a neutral gaseous atom to form a negative ion called? Open question → QUESTION Which synthetic element, identified by atomic number, is named seaborgium in honour of Glenn T. Seaborg? Open question → QUESTION Technetium, the first artificially produced element used in many medical diagnostic imaging scans, is found in which group of the periodic table? Open question → QUESTION Which metalloid in the carbon group is chemically similar to its group neighbours tin and silicon? Open question → QUESTION Which of the following scientists grouped the elements into triads? Open question → QUESTION Which description matches Dalton’s historical symbol for phosphorus? Open question → QUESTION The tendency of an atom or a functional group to attract a shared pair of electrons toward itself, is known as: Open question → QUESTION Which schematic, described by its group and period counts, matches the standard modern periodic table? Open question → QUESTION Consider the following statements about electron configuration and groups in the periodic table: 1. Elements of Group 2 have two electrons in their outermost… Open question → QUESTION According to Mendeleev's Periodic Table, which elements’ properties matched up remarkably well with eka-silicon? Open question → QUESTION In Newlands’ octaves, which listed element was found to have properties similar to lithium? Open question → QUESTION As per Mendeleev’s prediction, atomic mass of eka-aluminium was: Open question → Home Questions Play Progress 