Question

question 3
1 pts
number 137, hypothetically the last element, has already been named ______.
ununennium
unbibium
feynmanium
question 4
1 pts
______, powered by pond scum, is a galactic marvel: the only natural nuclear fission reactor known to exist
oklo
obninsk nuclear power planto
chicago pile

Explanation:

For Question 3: Element 137 is hypothetically named feynmanium, while ununennium is element 119 and unbibium is element 122.
For Question 4: Oklo is the only known natural nuclear fission reactor, formed naturally in Gabon; the other options are artificial human-made reactors.

Answer:

Question 3: feynmanium
Question 4: Oklo