PPT 1 & 2 Flashcards
Every object in a state of motion will remain in that state of motion unless an external force acts on it is ___ law of motion.
1st
F=m*a (force=mass x acceleration) is ___ law of motion.
2nd
For every action there is an equal and opposite reaction is ___ law of motion.
3rd
Ability to do work
Energy
W = ?
W = force * distance
Who came up with the billiard ball model of the atom?
Dalton
Who came up with the plum pudding model?
JJ Thompson
What model of the atom do we currently use?
It is made up of mostly _____.
The Bohr model
empty space
Who discovered radioactive decay?
Becquerel
Acceleration is a ____ and a ____.
Speed, direction
Planck came up with the idea of _____.
Wave-particle duality
Atomic charge is the number of ____ ___ the number of ____.
protons, minus, electrons
In reference to the periodic table, the number of the period equals the number of ____.
electron shells
In reference to the periodic table, what happens to the atomic radius as you move to the right?
It decreases
In reference to the periodic table, what happens to the ionization energy as you move to the right?
It increases
The atomic number ____ as you move to the ____ and ____ on the periodic table.
Increases, right, down
Who discovered electrons?
JJ Thomson
In the plum pudding model, the overall charge of the atom is ___.
+
In the solar system model, the overall charge of the atom is ___.
neutral
In the solar system model, the charge of the nucleus is ___.
+
Who came up with the solar system model of the atom?
Bohr
Every object in a state of motion will remain in that state of motion unless an external force acts on it is the concept known as ____.
Inertia
