Who hypothesized that electrons orbit around a nucleus

one way the modern atomic model differs from Thomson's atomic model is that electrons are no longer scattere'd throughout an atom's positive matter like chocolate chips in cookie dough.

Everything around us is made of

You are conducting a weathering study and your solution analysis indicates that you have 1.8 X 10-3 M silica and a pH of 3. You plug this data into your chemical speciation computer program and indicates that quartz precipitates.

You mix 125 mL of 0.154 M CsOH with 60.0 mL of 0.456 M HF in a coffee cup calorimeter, and the temperature of both solutions rises from 24.4°C before mixing, to 35.9°C after the reaction.

Suppose that quality control at an aspirin manufacturing plant felldown on the job and left some aspirin tablets to be sold thatcontained salicylic acid, what might happen to persons who ingestedthese tablets as a result? explain

What mechanical waves needs a medium to travel through? A. all mechanical waves need a medium to travel through B. surface waves only C. transverse and longitudinal waves only D. longitudinal and surface waves only

Which of the following statements correctly describes how Moseley's research affected the development of the periodic table? Moseley's research led to the reorganization of the elements based on their atomic mass instead of their physical appearance.

A minerals luster is produced by its ability to transmit light. Opaque minerals always have a metallic luster because they do not transmit any light. True False

The elements selenium and oxygen are both poor electrical conductors in which section of the periodic table are they found

What is the mole ratio of NaOH to Al (OH) 3