Ammonia is a compound formed from 1 atom of nitrogen (n) and 3 atoms of hydrogen (h). which chemical formula is correct for ammonia? nhhh n3h nh3 (nh)3

Stage in which a typical star has completely stopped fusion

What’s the theoretical yield of solid lead

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