Answer:
Cold
Explanation:
They can not survive in cold conditions
Answer: It might be C and D, if I am right please brainlist me
Explanation:
Isotopes
Atoms of the same element; number of protons remain the same, number of neutrons vary. Chemical properties remain the same. Atomic mass varies.
Na sodium with 11 neutrons = atomic mass of 22
With 22 neutrons the mass is 23.
Both have 11 protons in the nucleus.