The ancient Greek philosopher who came up with the term "atomos" to describe small building blocks for all things.
Democritus
The equation to calculate atomic mass.
atomic mass = protons + neutrons
This is anything that takes up space (has a mass).
matter
The experiment that led to the discovery of the nucleus.
Gold-foil experiment
The atomic mass of an element with 5 neutrons and 3 protons.
8
He came up with the "plum pudding" model of the atom.
J.J. Thomson
The number of protons in an element with 10 neutrons and an atomic mass of 20.
10
The name of the scientific discipline that studies matter.
chemistry
The name for the model of the atom theorized by Schrodinger.
quantum model
The number of neutrons in an element with 9 protons and an atomic mass of 20.
11
The name for the change from a liquid state of matter to a solid state of matter.
freezing
The name of hydrogen if it had one more proton.
helium
1913
The atomic mass of selenium if it has 26 neutrons.
60
Deposition is the change from this state of matter to this state of matter (2 answers, must state both).
gas to solid
Some atoms have more ___________, which makes it an ion and gives it a negative charge
electrons