Q13.8Multiple correct
Fusion processes, like combining two deuterons to form a He nucleus are impossible at ordinary temperatures and pressure. The reasons for this can be traced to the fact:
- (a)nuclear forces have short range.
- (b)nuclei are positively charged.
- (c)the original nuclei must be completely ionized before fusion can take place.
- (d)the original nuclei must first break up before combining with each other.