Atomic Theory Scientists
This scientist discovered the electron and developed the plum pudding/ Chocolate chip model
Who is JJ Thomson?
What do you call the same element with a different number of neutrons.
What is an isotope?
How many protons and neutrons does Iron have?
26 protons and 30 neutrons
What is the name of the model that suggests that electrons orbit the nucleus in fixed paths at fixed energy levels?
What is the planetary Model?
What is the Bohr Model?
This particle has no charge and helps to keep the nucleus in tact.
What is a neutron?
What is an ion?
When an element has a charge, ex: H+ Cl-2
Abbreviations used in chemistry for chemical element names
What is a chemical symbol?
This scientist responsible for the discovery of the neutron in 1932.
Who is James Chadwick?
What element has an atomic mass of 119?
What is Tin (Sn)?
This element has 30 electrons
What is Zinc?
What is the smallest particle that still can be considered an element?
Atom
This is the scientist who determined the atom was mostly empty space by firing alpha particles (+ charge) at a piece of gold foil.
Who is Ernest Rutherford?
These 2 particles have a relative mass of 1 amu.
What are protons and neutrons?
This is the formula for mass number.
What is # of protons + # neutrons?
particles are measured in this unit?
What is amu?
What is atomic mass unit?
How many electrons does Cl have?
What is 17?
This particle has virtually no mass, but contributes mostly to the volume of the atom.
What is an electron?
Lead (PB) has this number of neutrons
What is 125 neutrons?
The element with a mass # of 23
What is Sodium?
How many protons and electrons does Ge have?
What is 32 protons and 32 electrons?