F21 Physical Science Exam 4 Review

When an electron is not in its lowest energy state, it is in its ____.

Why does hydrogen's line spectrum have four lines?

An element's identity is determined by?

Which of the following is not an element?

Atomic weight is?

During a combustion reaction, energy is ___.

When a metal atom combines with a nonmetal atom?

What is the atomic weight of a nitrogen atom?

A chemical reaction does NOT involve

How many quantum numbers are used to identify the energy state of an electron?

What happens when bonds are formed during a chemical reaction?

Different numbers of neutrons in atoms of the same element?

Chemical behavior of atoms is determined by?

Which of these has a full outer shell of electrons?

The source of alpha particles in Rutherford's experiment was?

Why did Thomson think electrons were negatively charged?

Obtaining an outer orbital with eight electrons is

Pure substances that can be broken down into simpler compounds by chemical processes are

What do subscripts in a chemical formula tell you?

Smallest unit of an element?

An atom has 15 protons and 16 neutrons. It is an atom of?

What happens when an electron moves from its ground state to its excited state?

Sharing electrons is

The atomic mass unit is based off of the mass of what element?

What charge will a potassium ion have?