Answer:
the answer is d
Explanation:
It migrates to coastal areas during the winter months to catch fish.
Since the electron is de-exited from 1(st) exited state (i.e n=2) to ground state (i.e n=1) for first line of Lyman series. Since the atomic number of Hydrogen is 1. λ = 4/3⋅912 A. 1/R = 912 A
1.53 mole of n2o2.
now just multiply 1.53 by avogadro's number.
1.53 x 6.02 x 10^23 = 9.21 x 10^23
that is your answer in scientific notation
Rain bc it’s hot then cools
