Physical Science Chapter 4: Atomic Structure

a flow of charged particles

Proposed theory that matter is made up of atoms, which cannot be divided

when all the electrons in an atom have the lowest possible energies

designed an experiment to show that neutrons exist

came up with "plum pudding" model

Can we see subatomic particles with a microscope? Can we see atomic particles?

Who believed all matter consisted of extremely small particles that could not be divided?

the arrangement of electrons in the orbitals of an atom

a neutral subatomic particle that is found in the nucleus of an atom

a positively charged subatomic particle found in the nucleus of an atom

a visual model of the most likely locations for electrons in an atom

used an electric current to learn more about atoms

the sum of the protons and neutrons in the nucleus of that atom

the possible energies that electrons in an atom can have

a region of space around the nucleus where an electron is likely to be found

Which subatomic particles are found in the nucleus?

a negatively charged subatomic particle that is found in the space around the nucleus

a dense, positively charged mass located at the center of the atom

žWho did not think there was a number of times matter could be divided?

How would an isotope of oxygen with an atomic mass of 16 be written?

žAn ________ is a good approximation of how electrons behave in their __________.

came up with the “solar system” atomic model

the number of protons in an atom of that element

Discovered the nucleus

electron comes from a Greek word meaning what?

Isotopes have different numbers of which subatomic particle?