Periodic Table
The atomic number representation.
What are protons and electrons?
Developed the first atom model.
Who is Democritus?
Sum of protons + neutrons.
What is the mass number
The core of an atom.
What is a nucleus?
Atomic number 1.
What is Hydrogen?
Number of neutrons.
What is mass number - atomic number?
Discovered atoms can be rearranged.
Who is John Dalton.
Mass number of Lithium (rounded)
What is 7?
The result of radioactive decay.
What is the atom becoming stable?
True or False: protons and neutrons are approximately the same mass.
What is true?
Amount of elements in the periodic table.
What is 118?
Added positive and negative charges.
Who is JJ Thompson?
Getting the amount of electrons.
What is the mass # (rounded) - atomic #
Amount of time it takes for half the amount of atoms to decay.
What is Half-life?
Pb element.
What is Lead?
What is element 69.
What is Thumlium?
Positively charged nucleus.
Who is Ernest Rutherford?
Number of electrons in Hydrogen.
What is 1?
3 types of particles.
What is alpha, beta, and gamma?
137 mass # (rounded)
What is Barium?
The atomic number of iron.
What is 26
Electron charged cloud model.
Who is Erwin Schrödinger?
244 mass number.
What is Plutonium?
Particle that is small, fast, and can go through skin.
What is gamma?
Element 58.
What is Cerium?