5. I was walking along and I saw these two.
I was telling jokes to the neutron.
The proton and I were having fun.
6. They looked so happy there together.
I was p o s i t i v e l y charged!
I couldn’t have amassed more happiness.
7. The proton looked happy, so I wandered closer.
I could see the electron coming near.
The who? Huh?
8. They were HUGE next to me!
The electron was so cute!
Like a speck of dust, or something…
9. I didn’t want to seem obvious, so I kept walking.
Around and around the electron goes.
Hey electron, you’re making the proton dizzy.
10. The proton seems so happy with the neutron.
I’m having fun, but I still notice the electron.
It won’t bother me if the electron hangs around.
11. I guess I’ll just wander around out here.
I’m happy hanging out here.
The center is cool, but sometimes it can be a “Bohr”.
12. Electrons circle around the nucleus of an atom.
Protons are a main part of the nucleus of an atom.
Neutrons also hang out in the nucleus of an atom.
13. Electrons have a negative charge. ¾
Protons have a positive charge. +
Neutrons have no charge. 0
14. Electrons are little and have a mass of almost zero.
Protons are big and have a mass of one.
Neutrons are also big and have a mass of one.
15.
16. What is the structure of an
atom?
• Nucleus – center of the atom
– Home of Protons and Neutrons
–Proton
•Has a positive (+) charge
•Has a relative mass of 1
•Determines the atomic number
•Found inside the nucleus
17. What is the structure of an
atom?
–Neutron
•Has no (0) charge
•Has a relative mass of 1
•Determines the isotope
– Isotopes are two of the same
element with different masses
•Found inside the nucleus
18. What is the structure of an
atom? • Electron
– Has a negative (-) charge
– Has a relative mass of 0 (zero)
– Determines the ion
– Found outside the nucleus
• Bohr model – electrons are in specific
energy levels
• Electron cloud model – electrons are in a
random cloud
19. What is the structure of an
atom?
Bohr Model
“Planetary Model”
Schrödinger Model
“Electron Cloud Model”
20. How are P, N, e- related?
• # protons = atomic number
• # electrons = # protons in a neutral atom
• # protons + # neutrons = atomic mass
