Particle Q has 16protons, 17neutrons and 18 electrons. Particle Q is: a. an atom of noble gas
b. a cation
c. an anion

What is the area in square meters of 448 g ai foil that has a thickness of 23921 nm? the density is 2.70 g/cm

Four statements about the development of the atomic model are shown below. a: electrons have wavelike properties. b: atoms have small, negatively charged particles. c. the center of an atom is a small, dense nucleus. d: atoms are hard, indivisible spheres. which order of statements represents the historical development of the atomic model? c-d-a-b c-d-b-a d— в-а — с d-b-c-a

Just on number 2 (all parts), and if you do answer explain in detail