Is francium a compound or element? What is the chemical element selenium? Is mendelevium an element? Is bromine a metal, nonmetal or metalloid? What chemical element is Br? What is the half-life of iodine? What is the color of iodine solution? What chemical element is Ni? What is the...
(Main group metal, transition metal, metalloid, or nonmetal?) d How many elements are in the third period of the periodic table? Neon is in which group of periodic table? Name an element in the third period (row) of the periodic table...
nonmetal b. main group metal c. transition metal d. metalloid e. none of the above Which of the following is an atomic element? a. Hydrogen b. Oxygen c. Bromine d. Nitrogen e. Calcium Which element is the most electronegative? (a) helium (b) hydrogen...