What best describes the motion of iron atoms in solid iron?

What is the value of keq for the reaction expressed in scientific notation

What volume would 2.25 moles of ne has occupy at stp?

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