Atomic Structure - Chapter 4

Which subatomic particle has a negative charge?

Earth, Fire, Air, and Water were the four elements found in all matter. So said who?

A dense, positively charged mass in the center of an atom is the

What is an atomic number?

The smallest particles of matter, considered to be indivisible by Democritus, are the ________.

What is the pathway called that electrons travel on?

The term used when electrons have the lowest possible energy is

The Greek term "atomos", coined by Democritus, means

True or False:  Thomson's experiments provided the first evidence of subatomic particles

Whose atomic model was called the "Plum Pudding" model?

When trying to predict the locations of electrons, scientists must work with what area of math?

An ___________ is the pathway around the nucleus that electrons are likely to be found.

What quantity is always equal to an element's atomic number?

All oxygen atoms have 8 protons.  How many neutrons are in oxygen 18?

True or False:  Two different elements can have the same atomic number

True or False:  Two atoms of the same element can have different numbers of protons.

Which of the following is NOT in Dalton's Theory?

Every atom of a given element does not have the same number of

Which is NOT a subatomic particle?

What does the mass number of an element represent?

Which of the following subatomic particles has the smallest mass?

Which subatomic particle has a positive charge?

Democritus and Artistotle were both from which country?