Answer:
Explanation:
Physical change is a temporary and reversible change in which the physical properties of the substance changes without altering the composition of the substance Eg Melting of ice while chemical change is a permanent and not so easily reversible change in which the identity of the substance is altered to produce one or more substances Eg Combustion
Answer:
7 orbitals
Explanation:
An f sublevel has 7 orbitals
The answers are name: Cerium, symbol: Ce, atomic number: 58, and atomic mass: 140.110