Skip to content Home Questions Play Progress Daily Challenge Questions › Chemistry › Periodic Table Questions QUESTION In the traditional naming convention that distinguishes argentous from argentic silver, which listed oxidation state is associated with argentic silver? Open question → QUESTION Which of the following is a highly electropositive element that readily gives up an electron in order to obtain a stable electronic configuration? Open question → QUESTION Using electron affinity as the positive energy released when an electron is added to a neutral gaseous atom, which increasing order is correct for… Open question → QUESTION Which radioactive element has atomic number 43 and no stable isotopes? Open question → QUESTION Which chemical element of Group 18 of the periodic table is produced by the natural radioactive decay of uranium in soils and rocks? Open question → QUESTION Which of the following elements is a member of the actinide series? Open question → QUESTION At 20 °C and approximately 1 atm pressure, how many of the familiar elements are gases? Open question → QUESTION Consider the following statements about the familiar Group 6 metals chromium, molybdenum and tungsten. 1. Chromium is a Group 6 element with variable oxidation… Open question → QUESTION Which element has a symbol derived from hydrargyrum, a Latinised Greek name meaning liquid silver? Open question → QUESTION Identify the group of the periodic table to which cobalt belongs. Open question → QUESTION What is the atomic number of nobelium, the element named after Alfred Nobel? Open question → QUESTION First produced in 1955, which element number belongs to mendelevium, named in honour of Dmitri Mendeleev? Open question → QUESTION Who conducted X-ray spectroscopic study of a large number of elements and showed that the frequency of X-rays emitted by an element is related… Open question → QUESTION Which Group 13 soft metal melts near 303 K and is important in semiconductor and solid-state device technology? Open question → QUESTION Hydrogen resembles the properties of which two groups of the periodic table? Open question → QUESTION Which listed chemical element is a noble gas? Open question → QUESTION Which listed naturally occurring element has a relative atomic mass of approximately 238? Open question → QUESTION Which element in the modern periodic table has the same number of valence electrons as that of caesium? Open question → QUESTION Lanthanides are often called: Open question → QUESTION Identify the element that does NOT belong to Period 6 of Modern Periodic Table. Open question → QUESTION Consider the following statements about transuranic elements: 1. Rutherfordium is a synthetic radioactive element with atomic number 104. 2. Mendelevium was discovered before Rutherfordium… Open question → QUESTION Which of the following elements is NOT a halogen? Open question → QUESTION Which of the following group elements are called chalcogens? Open question → QUESTION Identify the last element from the fifth period. Open question → Home Questions Play Progress 