Another name for a cathode ray tube that gives credit to its creator
What is Crookes tube
Like charges do this to each other
What is repel?
The symbol for potassium
What is K?
Atoms with the same number of protons but different numbers of neutrons
What are isotopes?
Element or compound? Table salt
What is a compound?
In a cathode ray tube, gases are exposed to this
What is electricity?
The second rule of electrical charge.
What is opposite charges attract each other?
Nonmetals (except one) are on this side of the periodic table
What is right?
C has this number of neutrons
What is 8?
Ionic or covalent? Compound that contains only nonmetal atoms
What is covalent?
Crookes put an obstacle between the cathode and the end of the tube to prove that the cathode rays were this.
What are particles?
If the number of positive charges is greater than the negative charges, a substance will have this type of overall charge.
What is positive?
The atomic number tells us how many of these are in the atom
What is a proton?
This process is used to remove (238)U in order to increase the percentage of (235)U present in a sample of Uranium.
What is isotopic enrichment?
Homogeneous or heterogeneous mixture? Oil and water
What is heterogeneous?
Thomson proved that these particles were electronically charged by exposing them to this device
What is a magnet?
Most substances on earth have this type of overall electrical charge
What is neutral?
The total number of neutrons and protons in an atom gives us this number
What is mass?
Getting the proper this is the only hard part of making an atomic bomb.
What is fuel?
Metal or nonmetal? Hydrogen
What is nonmetal?