Henry moseley studied x-ray spectra of several elements in a row of periodic table. he found that each element had one more proton than the element immediately to its left. which statement best describes moseley's contribution to the modern periodic table?
a. recognizing that elements in the periodic table have similar properties
b. arranging elements in the periodic table based on their properties
c. predicting the properties of missing several elements in the periodic table
d. providing a basis for ordering elements in the periodic table

the electron configuration that you gave me has 16 electrons ergo it has 16 protons ergo it is the element sulfur.

the density of gold = 19.3 g/cm3

the relation between density and mass and volume is

density = mass / volume

given :

mass of gold = 13 g

density = 13g / volume = 19.3

volume = 13 /19.3 = 0.67 cm^3

thus volume of gold nugget = 0.67 cm^3

hurricanes form when warm, moist air from the ocean surface quickly rises into the atmosphere and forms storm clouds and rain. when the clouds are formed, heat is released which warms the cool air in the upper regions of the atmosphere so that the cycle can continue. which two phases of the water cycle are repeated in this process?

the answer is d. 74.02