physical and chemical reactions and definitions
atoms,protons,
nuetrons,and electrons.
periodic table
law of inertia
100
color change
what is one sign of a chemical reaction?
100
positively charged
definition of protons
100
protons
what determines and elements identity?
100
velocity gives a direction
whats th main difference between velocity and speed?
200
rocks breaking
what is a sign of physical reaction?
200
the nucleus
where are the protons and neutrons found in the atom?
200
metal
which metal has the most elements in it? metal, non metal, alkaline metals
200
both tell how fast something is going
what do speed and velocity have in common?
300
a color change, temp. change, precipitate forming, odor, or gas produced that cant be changed back!
What are the 5 signs of a chemical reactions?
300
add the protons and nuetrons.
how do you find the mass of a atom?
300
metals
is group 1 made up of metals or non metals
300
balanced
if an object is being pushed but not moving the force is?
400
one big piece breaks into a bunch of little pieces!
how do we tell if a physical reactions occured?
400
electron cloud
where is most of the volume found in the atom?
400
how many energy levels.
what does the period number tell you?
400
zero
if an object has a constant speed and direction the acceleration would be?
500
physical-something that can be changed back. chemical-something that cant be changed back.
What are the definitions of a physical and chemical change?
500
EXTREMELY
how reactive is group 1?
500
18
how many groups are in the periodic table?
500
friction
What force always acts upon the object on slowing it down?
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