Select any notation of the following elements where there is an odd number of neutrons
Check the final answer first, then review the worked steps.
Problem
Select any notation of the following elements where there is an odd number of neutrons
Step-by-step solution
The number of neutrons is the mass number (top number) minus the atomic number (bottom number). We need to find isotopes with an odd number of neutrons. For 3/1 H, neutrons = 3-1=2 (even). For 9/4 Be, neutrons = 9-4=5 (odd). For 6/3 Li, neutrons = 6-3=3 (odd). For 1/1 H, neutrons = 1-1=0 (even). For 11/5 B, neutrons = 11-5=6 (even). For 12/6 C, neutrons = 12-6=6 (even). Therefore, the elements with an odd number of neutrons are 9/4 Be and 6/3 Li.
Answer
3/1 H, 9/4 Be, 11/5 B, 12/6 C