Helium, Neon, and Xenon are all part of the same column on the Periodic Table. Such a column is referred to as a Group, because they have the same number of valence electrons in their outermost shell. Hope this helps!
Answer:
0
Explanation:
It’s before the projectile was fired, so nothing has happened yet.
I think it's C, longer wave length.
Sound waves move through molecules. When there are no molecules in a certain space, sound cannot travel - whether in a vacuum or in space.
the axis acts against and it would be a contact force
