Question 1 1 point
1. Ionic Compounds can be classified with both a ...
A Nonmetal, Nonmetal
B. Metal, Metal
C. Metal, Nonmetal
D. Nonmetal, Transition Metal

Calculate the energy required to ionize a hydrogen atom to an excited state where the electron is initially in the n = 5 energy level. report your answer in kilojoules

An atom with 7 protons, 6 neutrons, and 7 electrons has an atomic mass of amu. (enter a whole number.) numerical answers expected! answer for blank 1:

Select all the correct answers.which compounds have the empirical formula ch20? (multiple answers)a.c2h4o2b.c3h603c.ch2o2d.c5h1005e.c6h1206