Which of the following elements are in the same period? A. Be and Mg
B. Na and Mg
C. O and S
D. Si and Ge

If a plot weight (in g) vs. volume (in ml) for a metal gave the equation y= 13.41x and r^2=0.9981 what is the density of the metal?

What effect might melting sea ice have for people who live in coastal areas?

Scientific evidence tells us that the cause of earths four season is the tilt of earth as it revolves around the sun. the student is instructed to illustrate this information in a science notebook. how will the student illiterate winter in the northern hemisphere?