Which statement is true about hf and hf? (1) both are elements (2) both are compounds (3) both are substances (4) hf is a compound while hf is an element

The image shows a process that releases nuclear energy which statement best identifies the process shown the process must be fusion because energy is released the process must be fusion because of have your nucleus formed a smaller nuclei the process must be fission because a large nucleus breaks into smaller nuclei the process must be fission because neutrons are formed

Consider the elements bromine and chlorine; which elements has a larger ionic radius ?

Compare and contrast physical changes with chemical changes.