periodic table and atoms
what are the rows and columns called on the table?
the rows are called periods and the columns are called groups
what is an element?
a pure substance that can't be broken down chemically or physically.
which is more acidic 3 or 6?
3
what is net force?
the total of all forces acting on an object
what is the measurement for frequency?
hertz
what are the majority of the elements classified as?
metals
what is a mixture?
a combination of two or more substances that are not chemically combined
what number would you label water?
7 or neutral
an object at rest/motion will stay at rest/motion unless acted upon by an outside force.
what does sound travel the slowest through?
what makes an atom to be highly reactive?
if it only has one or two valence electrons.
a pure substance consisting of two or more elements that are chemically combined
is a cleaning product an acid or a base?
a base
what is Newton's second law?
F=MA
true or false? sound waves are transverse waves.
false
what are valence electrons and what are the maximum amount of valence electrons?
Valence electrons are the electrons on the outside ring and the maximum is only 8.
how many how many elements are there on the periodic table?
118
where would you put battery acid on the ph scale
0-2
what is newtons third law?
every action has an equal and opposite reaction
what two things are needed for a sound wave
what are the charges?
protons?
neutrons?
electrons?
Protons- positive
neutrons- neutral
electrons- negative
how many molecules are there in this formula?
3C2H6O
three molecules
what is another name for a base?
an alkaline
what is inertia?
the tendency of an object to resist change in movement.
if the pitch is high, what else will be high?
the frequency