Science: Mrs. Damiano
Date:
Atoms, Elements, & the Periodic Table
BUILD AN ATOM INTRO
Part I - Explore the Atom
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Adding Protons, Neutrons, and Electrons:
- When I dragged a proton onto the atom, it went right into the nucleus, which is the central part of the atom.
- I dragged a neutron onto the atom, and that also went into the nucleus, just like the proton.
- When I dragged an electron onto the atom, it went into the orbits or electron clouds surrounding the nucleus.
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Subatomic Particles in Different Locations:
- The subatomic particles found in the nucleus of an atom are protons and neutrons.
- In the orbits, there are the electrons.
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Identifying the Element:
- When I added one proton, one neutron, and one electron, I made Hydrogen (H).
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Changes When Adding More Particles:
- Adding another proton changed the atom to Helium (since it has 2 protons now).
- Adding another neutron to the original atom mostly changed its mass but kept it as Hydrogen.
- Adding another electron changed the net charge, making it a negatively charged ion.
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Determining Factors for Atoms:
- The subatomic particle that determines the identity of an atom is the proton.
- Protons and neutrons determine the mass number of an atom.
- The net charge of an atom is determined by the electrons.
Part II - Building Atoms of Elements
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Building the First Atom:
- Element: Hydrogen
- Protons (p): 1
- Neutrons (n): 1
- Electrons (e): 1
- Element: Hydrogen
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For the next atom with 5 Protons:
- Element: Boron
- p = 5
- n = 6
- e = 5
- Element: Boron
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For the atom with 3 Protons:
- Element: Lithium
- p = 3
- n = 4
- e = 3
- Element: Lithium
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For the atom with 10 Protons:
- Element: Neon
- p = 10
- n = 10
- e = 10
- Element: Neon
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For the atom with 9 Protons:
- Element: Fluorine
- p = 9
- n = 10
- e = 9
- Element: Fluorine
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For the atom with 6 Protons:
- Element: Carbon
- p = 6
- n = 6
- e = 6
- Element: Carbon
Part III - Identifying Atoms of Elements
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Diagram A:
- Subatomic Particles:
- p = 4
- n = 5
- e = 4
- Mass Number: 9 (4 + 5)
- Element: Beryllium
- Subatomic Particles:
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Diagram B:
- Subatomic Particles:
- p = 7
- n = 7
- e = 7
- Mass Number: 14 (7 + 7)
- Element: Nitrogen
- Subatomic Particles:
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Diagram C:
- Subatomic Particles:
- p = 8
- n = 8
- e = 8
- Mass Number: 16 (8 + 8)
- Element: Oxygen
- Subatomic Particles:
Hope this helps with your understanding of atoms and elements!