The modern periodic law, according to Moseley, classifies elements based on arranging elements in ___ order

a. atomic number

b. atomic mass

c. size of atomic radii

d. mass number

Iron filings were sprinkled on a poster board with just one magnet. Describe the results 30 pts

What happens to a balloon which, after blowing into a square, climbs to the top of the hill. (temperature does not change)

The moon clearly exhibits a light and dark portion during most of the month except during full moon. What causes the dark portion of any phase to change in size, that is, become either more or less black?

While watching a small fireworks display from a building 204 feet tall, you observe a rocket that travels from ground to eye level in 6 seconds, and explodes. What is the maximum speed that you can guarantee that the rocket reached?

What is tiny holes on the surface of a plant?

Winston stands on the edge of a building's flat roof, 12 m above the ground, and throws a 147.0-g baseball straight down. the ball hits the ground at a speed of 18 m/s. what was the initial speed of the ball?

When is the zebra in motion when it is not moving

1) What happens when two negatively charged tape strips are placed near each other?

Claudia throws a baseball to her dog. Which free-body diagram shows the baseball when it's flying horizontally in midair? (Assume no air resistance.)

What causes an air conditioned to turn on