Who arranged elements in order of increasing atomic number and revised the periodic table to the modern version?
A. John Newlands
B. Henry Mosely
C. Antoine Lavoisier

Iknow the answer to 13 is b and 14 is d. i just need to know why the correct answers are correct

Which statement best describes the relationship between period and frequency of light waves? a) in wave b the period increases and the frequency decreases from wave a. b) in wave a the period increases and the frequency decreases from wave b. c) in wave b the period is shorter and the frequency is greater than in wave a. d) in wave a the period is shorter and the frequency is greater than in wave b.

How many miles of water are produced if 5.43 mol pbo2 are consumed