Metals, for example Cesium and Francium
<span>In the Bohr model electrons in atoms can occupy allowed orbits where they do not emit energy. Exchange of energy with the surrounding environment occurs only when an electron "jumps" from an orbit to another. Hope this answers the question. Have a nice day.</span>
Correct Answer: compound because the atoms of the elements are combined in a fixed proportion.
HCI is the limiting reactant, and 4.3 mol AICI3 can be formed.
