An atomic theory is a model developed to explain the properties and behaviors of atoms. as with any scientific theory, atomic
theory is based on scientific evidence available at any given time and is subject to change. the development of atomic theory was
contingent on research that discovered and described the subatomic particles. one early model was critical in predicting that the
positive area of an atom was a small, dense location. which model was the first to suggests this?

What effect does a decrease in temperature have on the overall rate of a chemical reaction? a decrease in temperature decreases . the reaction rate will

Vi limitens. vastery test select the correct answer. which statement explains why large atoms are more reactive than small atoms? a. large atoms have valence electrons farther from the nucleus and lose them more readily. b. large atoms have greater ionization energy, which they can utilize during a reaction. c. large atoms have a greater number of electrons that they can lose during a reaction. d. large atoms have more energy levels, so they have more energy to pass on in a reaction. reset next

Determine the mass of the object below with accuracy and to the correct degree of precision. a. 324.2 g b. 324 g c. 324.30 g d. 324.25 g