However, not all the effects of nuclear technology on our life have been passive.
"Passive" does not quite work. "Destructive" maybe?
The most obvious negative impact of nuclear technology on our life is the use of nuclear power to destroy things
of which mankind never thought.
Hiroshima and Nagasaki were totally destroy and burnt to the ground with 210,000 victims.
"Passive" does not mean what you think it means. "Passive" means that you do nothing and let things happen without interfering. You seem to think "passive" means "destructive." Change this sentence:
Although it is true that nuclear technology has destructive potential, if we can use it judiciously we will be much benefited.
Good luck! Do not be discouraged. Your English is 90% perfect already, and it will get even better. Read many books that that you have read in your native language and that have been translated into English. That helps, I bet!