1. Matter and Measurements
The Scientific Method
1. Matter and Measurements The Scientific Method
1PRACTICE PROBLEM
Identify whether the statement is an observation, a law, or a theory.
a) An example of an inert or nonreactive gas is argon.
b) The arrangement of electrons in an element dictates its reactivity.
c) The chemical reactivity of elements follows a repeating pattern when they are listed in increasing atomic mass.
d) Fluorine is a highly reactive gas.
Identify whether the statement is an observation, a law, or a theory.
a) An example of an inert or nonreactive gas is argon.
b) The arrangement of electrons in an element dictates its reactivity.
c) The chemical reactivity of elements follows a repeating pattern when they are listed in increasing atomic mass.
d) Fluorine is a highly reactive gas.