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.
Lithium Mass number
What is 6.94?
The result of radioactive decay.
What is the atom becoming stable?
Atomic Number 12
What is Magnesium?
Number of elements on the periodic table
What is 118?
Added positive and negative charges.
Who is JJ Thompson?
Number of neutrons in Helium (rounded)
What is 2?
Amount of time it takes for half the amount of atoms to decay.
What is Half-life?
Lithium atomic number
What is 3?
Element Mg
What is magnesium?
Positively charged nucleus.
Who is Ernest Rutherford?
Number of neutrons in lanthanum (La)
What is 82?
3 types of particles.
What is alpha, beta, and gamma?
Atomic Number 69
What is Thulium?
Element Ti
What is titanium?
Electron charged cloud model.
Who is Erwin Schrödinger?
Number of neutrons in Iron
What is 30?
Particle that is small, fast, and can go through skin.
What is gamma?
Atomic Number 89
What is Actinium?