What is the atomic symbol for the element that has 5 electrons in its outermost orbit, and has the smallest atomic mass of any element in its group?

Nan element’s square on the periodic table, the number with the greatest numerical value represents the

Isopropyl alcohol, (ch3)2choh, is a common solvent. determine the percent by mass of hydrogen in isopropyl alcohol. a) 6.71% h b) 13.4% h c) 25.0% h d) 53.3% h

Which of the following statements are incorrect?