Matter
Mixtures
Periodic Table
Atoms
100
This type of matter has no definite volume or shape.
Gas
100
This type of mixture is the same throughout
Homogeneous
100
This number is how you know the number of protons that an element has.
The atomic number.
100
These are the two parts of an atom that reside in the nucleus.
Protons and Neutrons
200
What happens to particles as they are heated?
They move quicker
200
How can you separate a solid from a liquid?
Filtration
200
Carbon 14 has ____ neutrons?
8
200
This is what you call two atoms of the same element with different masses.
Isotope.
300
According to Boyle's Law, as the volume of gas increases, the pressure will _____ if the temperature stays the same.
Decrease
300
What kind of mixture is smoke?
Colloid
300
How many valence electrons do noble gases have?
8
300
This is the Bohr model of an atom.
Electrons circle the nucleus in fixed paths.
400
What is a physical change?
a change that is physically observable without changing the chemical composition.
400
What type of mixture is muddy river water?
Suspension
400
What is one thing that elements in the same family have in common?
The number of Valence electrons
400
Do electrons have a mass?
Yes, Very very little though. 0.000548579909 is the ratio to the mass of a proton.
500
Why does oil float on top of water?
Oil is less dense than water.
500
What is a compound?
When two or more substances are combined chemically.
500
How many neutrons does uranium 235 have?
143
500
If fluorine combines with hydrogen to make a strong acid, what do you think happens to Chlorine if it combines with hydrogen?
It creates a strong acid!
M
e
n
u