What's the Matter? Locating Electrons in an Atom

In this atom learning exercise, chemists learn how to determine the number of protons, neutrons and electrons in an atom using the atomic mass and atomic number. They complete a chart of the subatomic particles and use marbles to...

Four diagrams of the atom and their subatomic particles and structures are given here and learners should be able to complete the labels need to define the structures shown. The main structures defined are protons, neutrons, electrons,...

In this models of atoms and isotopes worksheet, students use marshmallow of different colors to represent the protons, neutrons and electrons in an atom. Students make models of the 3 isotopes of hydrogen. They draw a diagram of each and...

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,...

The creator of this collection of chemistry slides is clever! Electron configuration is explained as, click-by-click, orbitals are displayed and then each is subsequently filled with the proper amount of electrons. After the progression,...

What is matter? Find out in this entertaining video that thoroughly details how matter has both volume and weight, but looks different as a liquid, solid, and gas.

What will happen if you put the elements sodium and chlorine together? Sal answers this question, and others like it, in this video on valence electrons. The presence of electrons in an element's outer shell determines which element will...

A more detailed description and definition of orbitals, and the role they play in the atomic world are the focus of this video. The "P Orbitals" are described by taking a close look at the carbon element's properties. The periodic table...

How to determine electron configurations is the focus of this video. Sal shows students two different methods to find the electron configuration for the element, nickel. The first technique uses the periodic table, while second technique...

Young mathematical scientists interact with protons and electrons in an atom to create a neutrally charged atom. They answer questions based on their findings throughout the interactive resource.