I’m thinking C for this hope it’s right
The atomic radius of main group elements generally increases down a group because as there are more electrons they are farther away from the nucleus and the electrons closer to the nucleus shield the outer electrons from the protons for attraction.
Heya!!!
Answer to your question:
D)transverse
Sound waves are transverse waves.
Hope it helps ^_^
A= 6
B= 2
C= 1
D= 5
E= 3
F= 4
