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Subatomic Particles (PS1)
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What two forces will make the speed of molecules to either speed up or slow down?
temperature and pressure
Removing thermal energy makes the molecules...
slow down
Adding thermal energy makes the molecules...
move faster
Neither definite shape nor volume.
gas
Definite volume but not shape.
liquid
Definite shape and size.
solid
Lowering the amount of thermal energy changes the phase. Removing thermal energy from a liquid would change the liquid to a...
solid
Raising the amount of thermal energy changes the phase. Adding thermal energy to a liquid would change the liquid to a...
gas
Raising the amount of thermal energy changes the phase. Adding thermal energy to a solid would change the solid to a...
liquid
Two things that can determine the phase of matter are...
temperature and pressure
Subatomic particles are made of smaller particles called....
quarks
The atomic mass of an atom is determined by...
protons and neutrons
The subatomic particle that determines what the atom is the...
proton
Say one thing you learn in this lesson.
?
Name a particle in atom that has mass of 0.0005 amu.
electron
Name a particle in an atom that has mass of 1 amu.
proton, neutron
Name a particle that is found outside the nucleus of an atom.
electron
Name a particle that is found inside the nucleus of an atom.
proton, neutron
Which particle of atom has zero/no charge?
neutron
Which particle of atom has negative one charge?
electron
Which particle of atom has positive one charge?
proton
The three particles inside an atom are __.
protons, neutrons, electrons
Atoms are made of __ different particles.
three
Atoms have two parts (spaces): electron shells and __.
nucleus
We __ see single atoms with our own eyes.
cannot
Atoms are very, very, very __.
small
Atoms inside matter are always __.
moving
Matter we encounter everyday is made of tiny particles called __.
atoms
All matter has __ and takes up psace
mass