Exam 2: Structure of the Atom

The fundamental component of the atom that has the smallest mass is the

If an atom has the same number of electrons and protons it will

Atoms with the same atomic number and atomic mass number but have different energy within their nuclei are

A negative ion is

Each electron shell has a specific limit to the amounts of electrons it can hold.

For the chemical element sodium (2211Na), the atomic number is

Atoms with the same atomic number but different atomic mass numbers are

In the early 1800s English chemist John Dalton theorized that

The earliest atomic theory is generally associated with

All compounds are molecules and all molecules are compounds.

Atoms with the same number of neutrons but different number of protons are

An atom of helium (42He) has

The three fundamental particles of the atom are the

Elements can only occur naturally.

The word atom is derived from the Greek word atomos, meaning

How many electrons does a neutral atom of carbon (126C) have?

The electron binding energy is stronger when

The electron binding energy does NOT depend on

Each element has an unchanging number of protons.

An atom of oxygen (168O) has