What’s on the Atoms poster
A 3-row table: Particle · Charge · Where · Decides.
An atom is the smallest piece of an element that is still that element.
- Proton — positive — nucleus — which element it is
- Neutron — none — nucleus — the isotope
- Electron — negative — shells outside — how it reacts
Atomic number = protons. Mass number = protons + neutrons. Change the protons and it is a different element.
Questions about the Atoms poster
- What’s on the Atoms poster?
- A 3-row table: Particle · Charge · Where · Decides. An atom is the smallest piece of an element that is still that element. Proton — positive — nucleus — which element it is; Neutron — none — nucleus — the isotope; Electron — negative — shells outside — how it reacts. Atomic number = protons. Mass number = protons + neutrons. Change the protons and it is a different element.
- Who is the Atoms poster for?
- Atoms is filed under 7th Grade (ages 12–13), so it matches what that year asks a child to remember. It is equally useful to an older student revisiting science, and to the parent or teacher answering the question at the kitchen table.
- When should you use the Atoms poster?
- Draw a simple atom for the first ten elements. The pattern is immediate. A wall chart earns its place by being glanceable from where the work is happening, so Atoms belongs on the wall where that science work actually happens, within glancing distance, rather than filed away.
- What other posters go with Atoms?
- Chemical Reactions, Elements, Compounds and Mixtures and How Body Systems Work Together sit alongside Atoms in the 7th Grade set. Printed together they make a wall rather than a single sheet, which is how a reference set actually gets used.Chemical ReactionsElements, Compounds and MixturesHow Body Systems Work Together
- Is the Atoms poster free to download and print?
- Yes. Atoms downloads as a free PDF with no account, no email and no watermark, like everything else in the 7th Grade set. Print as many copies as you like for a home, a classroom, a library or a tutoring group; reselling the file is the only thing the licence rules out.Read the licence
- What size does the Atoms poster print at?
- Atoms is a vector PDF laid out for US Letter, and prints on A4 with Fit to page — the same file, no separate download. Because every mark on it is drawn rather than photographed, it stays sharp enlarged to A3, A2 or A1 at a copy shop. Colour carries emphasis only, so a greyscale print of Atoms loses nothing.Printing guide
Related posters
Charts that sit alongside Atoms on the same wall.
Browse every 7th Grade poster, or start from the full catalogue.