Physics - The Atom

The binding energies, or energy levels, of electrons are represented by their ___________.

The chemical element is determined by the number of __________ in the atom.

Atoms and molecules are the fundamental building blocks of 

Like charges _______ and unlike charges _______.

Ionizing radiation is capable of removing ____________ from atoms as it passes through the matter.

The smallest particle that has all the properties of an element is a(n) __________.

An atom in a normal state has an electrical charge of _______.

Electrification occurs through the movement of ___________.

The first person to describe an element as being composed of identical atoms was __________.

What is the removal of an electron from an atom called?

When atoms of various elements combine, they form __________.

The formula E=mc2 is the basis for the theory that led to the development of 

Aluminum has an atomic number of 13. How many protons does it have?

An atom that loses or gains one or more electrons is a(n) ________.

The maximum number of electrons that can exist in an electron shell is calculated with the formula _____.

The atomic number of molybdenum is 42 and the atomic mass number is 98. How many neutrons does it have?

The periodic table of the elements was developed by __________ in the late 19th century.

The energy of x-rays is

The innermost electron shell is symbolized by the letter _____.

How many electrons can the M shell hold?

Radio waves, light, and x-rays are all examples of _________ energy.

A positively charged nucleus surrounded by negatively charged electrons in well-defined orbits is the ___________ model

The rotation of electrons on their axis is the property called ____________.

The smallest unit of electrical charge is the __________.

Gamma rays are produced in the ___________ of the atom.

A neutral atom has the same number of _________ and electrons.

When is an atom considered to be in its "ground state"?

The term “atom” was first used by the ___________.

Matter is measured in

Like magnetic poles ________ and unlike magnetic poles ________.

How does the emission of beta particles transmute an element?

The atomic number of an element is symbolized by the letter _____.

The __________ is the least penetrating form of ionizing radiation.

What are the fundamental particles of an atom?

Energy is measured in

What is an atom with slightly higher than normal amount of energy called?

What is an isotope?

When an atom has the same number of protons as another, but a different number of neutrons, it is called an __________.