9. in a hexagonal close-packed crystal, every atom (except those on the surface) has_
neighbors.
8
10
6
12

What was bohr’s contribution to the planetary model

Ajet plane is speeding down the runway during takeoff. air resistance is not negligible. identify the forces on the jet.

How does the atmosphere to make earth livable? check all that apply. causes the seasons contains oxygen provides warmth creates important nutrients blocks harmful energy from the sun plz like !