Sodium's atomic number is 11. what does this tell you about an atom of sodium

In which situations is the principle of cross-cutting relationship useful in determining relative age?

Which short-term environmental changes would a very small asteroid or comet impact on earth most likely cause? check all that apply. flooding extinction craters on surface changes in weather patterns death of organisms and populations

Why does the earth spin slowly, not faster? is it possible to prove it scientifically? can you prove it with math?