Practice d
a
use the chart above to you answer the following questions
part a: distance conversions
1.
earth's diameter is 12,756 kilometers. how many meters is this?
2.
the diameter of earth's moon is 3,476 kilometers. express this distance in kilometers?
3.
the average distance between earth and it’s moon is 384.000.000 meters. express this distance in kilometers?
4.
a billion years ago, earth and its moon were just 200,000 kilome

Henry moseley used x-ray experiments to determine the atomic number of elements. how did his discovery contribute to the development of the periodic table? a. it confirmed that elements should be arranged in strict order of increasing atomic mass. b. it led to elements with similar atomic numbers being grouped together. c. it allowed the elements to be placed in strict order of increasing atomic number. d. it showed that the way mendeleev grouped elements together was completely wrong.