Although polymers can be melted at very low temperatures, it is very difficult for polymers to form complex shapes upon cooling. Group of answer choices True False

Which of the following electromagnetic waves can create ions?

Choose all the answers that apply. fluorine (f) has an atomic number of 9 and an atomic weight of 18.99. fluorine has a. 9 protons b. 10 neutrons c. 18 electrons d. an atomic mass of 19 e. at least one isotope

What does a numerical subscript following an element in a chemical formula mean?