Sodium belongs to Group I and Period 3 of the Periodic Table and iodine belongs to Group VII and Period 5. Based on this information, what can you tell about the atoms of sodium and iodine?

Mike and mitchell decide to have a foot race. they mark off a stretch of 100 yards, and recruit cindy to work the stopwatch. after running the race and looking at the results, cindy declared that mitchell was the fastest. so how did the boys times compare?

Which of the following will cause an increase in the acceleration of an object? increase force decrease force increase mass decrease mass

Apound is approximately 0.45 kilogram. a persons weighs 87 kilograms. what is the persons’s weight, in pounds, when expressed to the correct number of significant figures