Atoms Worksheets

This chemistry worksheet challenges students to examine the atomic structure of some common substances. They are required to fill in the blanks of a chart, then match sentence descriptions with the correct model of the atom. 

In this atomic structure worksheet, students answer 11 questions about the atom, the subatomic particles and the nucleus. They also calculate the number of moles in a sample of iron and express the atomic mass and mass number using an algebraic expression.

In this atoms worksheet, students determine the atomic number, atomic mass, and number of protons, neutrons, and electrons for 15 different atoms.

In this atoms and chemical bonding instructional activity, students complete 4 tables with information about atoms, their subatomic particles, their atomic mass and their atomic number, about the number of atoms in a formula, about ions and bonding and about isotopes.

In this atom learning exercise, students complete 60 questions about the trends in atoms such as ionization energy and atomic radius, about valence electrons, about the families of elements, about metals, non-metals and semi-metals, about the size of atoms and about the atomic structure of atoms.

In this atomic theory worksheet, students write a skit given a story line using Aristotle, Democritus and Dalton. They are given internet sites to find information about the facts and ideas of these past contributors to science.

For this atomic structure worksheet, students read and complete 19 short answer questions and problems on the structure of atoms. They describe each subatomic particles and calculate them.

For this atomic notation worksheet, students fill in a table with the number of protons, neutrons, electrons, mass number and atomic number for particular elements.

In this elements worksheet, students complete a graphic organizer by filling in this atomic number, number of protons, number of neutrons, and the mass number for the given elements. Then students complete 3 short answer questions.

In this atom learning exercise, students read about how to determine the number of protons, neutrons and electrons in an atom using the atomic mass and atomic number. They complete a chart including the details of the subatomic particles and location in the periodic table for each atom. They use marbles to represent protons, neutrons and electrons of the 11 atoms in the chart and build each. They answer 4 questions about the periodic table.