6th Grade Science - Chapter 7 - Atoms and Periodic Table

Special Machine that smashes atoms.

Protons and Neutrons are found in the _____________.

Man who developed a classification system for elements

If a Atom has 8 protons, how many electrons does it have?

What Scientist think atoms are like, based on repeated observations.

The study of matter

The smallest recognizable piece of an element is a _______________.

Substances that have only one kind of atom are called what?

What is an advantage for scientists to use chemical symbols?

The sum of the number of protons and neutrons results in an atom's approximate atomic ________.

The horizontal rows are called__________.

Man who developed a simplified model of the atom.

The space that represents the average distance that electrons are from the nucleus is called __

Classification system for elements

Abbreviation for the name of an element.

A column on the periodic table of the elements is called a _______.