90 points urgent need answers correct and quick 1. oxygen is more reactive than nitrogen. true false match the element with its description. match term definition potassium great conductor of heat and electricity barium has properties of both metals and nonmetals boron nonreactive gas neon malleable and highly reactive 3. which of the following elements is the most reactive? beryllium calcium magnesium barium a neutral atom of chlorine (cl) has an average mass of 35 amu and 17 electrons. how many neutrons does it have? 17 35 18 52 which of the following elements has the largest atomic radius? potassium calcium cobalt nickel the element manganese is represented by the symbol (capitalization is important.) answer for blank 1: mn? use your periodic table of elements. take any element of your choosing (from period 4 or above) and answer the following questions: what is the element's name and symbol? is it a metal, nonmetal, or metalloid? which family does it belong to? how many protons, neutrons, and electrons does its neutral atom have?