The positively charged particle found in an atom’s nucleus.
What is a proton?
100
The one or two letter representation given to an element.
What is the chemical symbol?
100
The scientist who found that the electrons were found in specific orbits around the nucleus and said the atom was like our solar system or an onion.
Who is Niels Bohr?
100
The property of an element that the current periodic table is arranged by.
What is atomic number?
100
This allows you to identify an elements identity.
What is the number of protons?
200
The negatively charged particle found orbiting an atom’s nucleus.
What is an electron?
200
An element is referred to by this. (it can have been for the person who discovered the element, in honor of a famous scientist or even for the state it was discovered in)
What is the chemical name?
200
The scientist who found the electron and said the atom was like a watermelon, with the seeds representing the electrons.
Who is J. J. Thomson?
200
The name given to the rows of the periodic table.
What is period?
200
A device that scientists use to help them explain ideas about the natural world.
What is a model?
300
The neutrally charged particle found in an atom’s nucleus.
What is a neutron?
300
This is based on the number of protons found in the nucleus of the atom.
What is the atomic number?
300
The scientist who developed the atomic theory and said the atom was like a hard ball and was unable to be cut apart.
Who is John Dalton?
300
The name given to the columns of the periodic table.
What is family or group?
300
The order that the elements’ atomic numbers are arranged in the current periodic table.
What is increasing order?
400
The smallest particle an element can be divided into.
What is an atom?
400
This is the sum of the number of protons and neutrons found in the nucleus of the atom.
What is the atomic mass?
400
The scientist who found the proton and said the atom was like a cherry with the pit being the nucleus.
Who is Ernest Rutherford?
400
The property of an element that Mendeleev’s original periodic table was arranged by.
What is atomic mass?
400
The position of an element in the periodic table allows us to predict this.
What are properties?
500
The region in an atom where the electrons can be found.
What is the electron cloud?
500
What it is called when an element has a different number of neutrons from the protons.
What is an isotope?
500
The scientist who found the neutron within the nucleus.
Who is James Chadwick?
500
All of the elements in a group or family have similar…