Atoms and Ions

Using a copy of the periodic table, chemistry test takers fill in a chart with element name, chemical symbol, atomic number, atomic mass, and numbers of subatomic particles. They define subatomic particles, draw atom models, explain...

Provide young chemists with the ability to manipulate atoms and predict their results, in this sixth lesson. Pupils analyze energy patterns as they predict the amount of energy required to remove electrons from atoms. They compare trends...

A science lesson begins with a presentation and discussion about atoms and molecules. Then scholars divide into groups to complete hands-on activities. It also offers an additional extension about elements and orbitals.

On "Defining the Atom," physical science starters fill in blanks, determine if statements are true or false, match terms with the appropriate definitions, and solve problems. Questions are about Dalton's atomic theory, the atom and its...

Learners see how electrons are transferred in the bonding of NaCl. They then create models of NaCl using styrofoam balls and toothpicks to assist them in explaining the formation of ions and ionic bonding. 

Lead the class on an investigation as they play detective and locate patterns in the electron arrangement of atoms. During the seventh lesson, they assign valence numbers to elements, organize the periodic table in the correct sequence,...

In this charge and electricity worksheet, students read about electric charges and how they are created in atoms. They also read about the unit of charge, called the Coulomb, conductors, and insulators. Emerging electricians match 11...

Young scholars discuss how small they must cut something before it is no longer fundamentally the same. An online activity challenges and engages pupils in learning about the periodic table. Two hands-on activities cover elements and...

This is a tremendous overview of the tiny atom. Journey through the history of human understanding of this basic building block of matter. Examine each of the sub-atomic particles in detail: neutrons, protons, electrons, quarks. Peruse...

Sal discusses what happens to elements when they become ionized. He demonstrates that when neutral atoms become ionized, it can significantly change their relative atomic sizes. He uses the Periodic Table of the Elements to illustrate...