Indeed, there's no denying it.
As for this element astatine, Lin Xian does have some impression of it, definitely a radioactive element.
And the number that follows represents the isotope of the astatine element.
Huh?
Lin Xian recalled the chemistry knowledge he once learned.
Astatine-339?
Impossible!
The atomic number of astatine is 85, how could there be an isotope like Astatine-339?
This is utterly unscientific!
"What exactly is Astatine-339?"
Lin Xian asked:
"This isotope... It's not just that it doesn't exist on Earth, it shouldn't exist in this universe at all."
"Exactly."
Gao Wen gave him an approving look;
"It seems your basic knowledge is indeed solid."
After speaking, he wrote Astatine-191~229 on the blackboard and explained: