In 1869, a Russian scientist named Dmitri Mendeleev developed a way to organize the elements. He grouped and organized them according to their characteristics. We call this chart the periodic table of elements. Think about how the periodic table is arranged. Now, explain to the reader of your paper how elements are arranged on the periodic table. 60+ words

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

the maximum mass of nh3 is nh3 in grams

a. the law of proportion states the combination of 2 atoms in a specific ratio to produce multiple compounds such as the given statement of question ‘1st compound contains 88.8 % cu ’ indicates 88.8 g of cu is present along with 11.2 g oxygen in 100 g of compound whereas the statement ‘2st compound contains 79.9 % cu ’ indicates 79.9 g of cu is present along with 20.1 g oxygen in 100 g of compound

1st compound contains 88.8 g cu

for cu

m = 63 g /mol

atomic % = 88.8 /63 = 1.42

for o

m = 16 g /mol

atomic % = 11.2 /16 = 0.7

b. the emperical formula of 1st compound is

cu1.4o0.7

cu2o