Physical Science Atoms

The very small center core of an atom:

Electrons are:

What is the charge on the ion?

Which atomic model is represented in the picture?

How many protons does the atom have?

The first electron shell can hold how many electrons?

The smallest particles of matter are:

Protons are:

Atoms with the same number of protons but different numbers of neutrons:

What did the plums in the "plum pudding" model represent?

Name the element.

Atoms with unequal numbers of protons and electrons:

Who discovered the electron?

How many neutrons does the atom have?

The atomic number is the same as these number of particles:

This scientist was the first to write a theory of atoms. 2 out of 3 of his ideas were wrong!

Neutrons are: 

Which atomic model is this?

Which of the following are not found in the atom's nucleus?

How many electrons can be held in the second energy level? (electron shell)

How many electrons does the atom have?

An element can be identified by its number of:

The particle of an atom that moves rapidly around the nucleus is:

What element has 8 protons?

Which isotope is the most common?

When electrons and protons cancel each other out, the atom is

Which atom has the most electrons?

What is the atomic number of the atom?

Who was the first to use the word "atom"?

Who discovered the nucleus?