Halogens (atoms with 7 valence electrons) and Hydrogen
or generally, atoms with their shells almost full
Answer:19. He says that he’s been really tired since several weeks ago. 20. A friend of us is going to pick us up at the airport. 21. I’ve worked like a waiter in the past, but I wouldn’t want to do it again. 22
Explanation:
Your answer to this question is 1.20 times 1024 atoms
You have to do a report :

So
the truck efficiency is 38%.
Answer:
They all have the same fundamental properties of reflection