force
a push or pull
what is force?
8CO2
the number of molecules
What is 8?
scientist that created the periodic table of elements
who is Dimitri Mendelev?
a place where an object is located
what is posistion?
the first step in the scientific method
what is a problem?
0 Newtons
located in the nuclues
vertical columns
what are groups?
how far an object is away from where it started
what is displacement?
how is a hypothesis written
what is if...then?
the overall force measured in Newtons
What is net force?
the scientist that created the bohr model
Who is Neils Bohr?
horizontal rows
can be found using your senses
what is an observation?
an educated guess that can be tested
what is a hypothesis?
objects tendency to resist a change in motion
what is inertia?
the outermost electrons
what are valence electrons?
the most reactive group
what is group 1?
a set of letters that are used to represent an element
what is a chemical symbol?
the variable that can be tested
what is dependent variable?
what is the 3rd law?
protons + electrons
what is the atomic number?
amu is
the scientist that created the continental drift theory
Who is Alfred Wegner?
interpretation of observations
what is an inference?