Practice 3rd Quarter Mid-Term TEST

According to our Science textbook (assigned reading pages) approximately when in recorded human history did someone think of the idea of the atomos?

• 1808

• 400 BCE

• 1897

• Yesterday

By the end of this lesson, you should be able to descibe how the devlopment of the [?] has led to the modern understanding of the atom and its parts.

True or False: The Greek philosopher, Aristotle, agreed with Democritus' idea that there existed a particle that could make up all substances found in nature.

• TRUE

• FALSE

An ancient Greek philosopher, [?], thought up the idea that we would eventually end up with a particle that could not be cut - atomos.

• Demetrius

• Dionysus

• Dumbledore

• Democritus

Democritus called a particle [?], which is a Greek word meaning "not able to be divided".

It is the "smallest unit of an element that maintains the properties of that element".

• Atom

• Proton

• Electron

• Neutron

It is "a subatomic particle that has a negative charge".

• Atom

• Electron

• Proton

• Neutron

It is "a subatomic particle that has a positive charge and that is located in the nucleus of an atom; the number of this subatomic particle is the atomic number, which determines the identity of an element".

• Atom

• Electron

• Proton

• Neutron

It is "a subatomic particle that has no charge and that it located in the nucleus of an atom".

• Atom

• Electron

• Proton

• Neutron

The Electron [?] is a region around the nucleus of an atom where electrons are likely to be found.