1 / 10

Notes on Subatomic Particles

Dive into the world of subatomic particles like protons, neutrons, and electrons within an atom. Learn how to calculate the number of neutrons, identify isotopes and ions, and navigate the periodic table with ease. Discover the organization of the table, different families within it, and the properties of elements. Explore examples and gain insights into this essential aspect of chemistry.

staceyk
Download Presentation

Notes on Subatomic Particles

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Notes on Subatomic Particles proton neutron There are 3 subatomic particles in an atom: 1. 2. 3. electron

  2. nucleus Electrons (negative) Proton Neutron (positive) (neutral)

  3. 1 amu (atomic mass unit) positive nucleus (p+) neutral nucleus 1 amu (n) Zip around nucleus in shells (e-) negative _1_ amu 1837

  4. When using the periodic table to find subatomic particle information… Atomic mass # symbol A Z Atomic # Atomic mass # : • Is a number in decimal form • When you round it, it tells you the mass of p+ + n + e- x Atomic # : • Tells the # of p+ • Tells the # of e- To find the # of neutrons: Atomic mass # - atomic # = # neutrons

  5. Atoms that aren’t typical • ISOTOPE – atom with a number of neutrons that is higher or lower than what’s indicated on the periodic table (typically radioactive) • ION – atom with a number of electrons that is higher (anion) or lower (cation) than what’s indicated on the periodic table

  6. Examples on Subatomic Particle Worksheet: 23 sodium 11 11 12 11 11 91 Zr zirconium 40 40 40 40 Cs cesium 55 55 78 133 55

  7. Notes on the Periodic Table • Periodic table created by Dimitri Mendeleev He organized it by increasing mass (doesn’t work…look at #27 and #28) and by similar properties • NOW organized by increasing atomic number and by similar properties

  8. Organization of the Periodic Table Rows () – periods, shells, energy levels, electron clouds Columns (↕) – groups, families, # of valence electrons Left of Zig Zag Line - metals, cations (positive ions) Zig Zag Line – metalloids, semi-metals, semiconductors Right of ZigZag Line – non-metals, anions (negative ions)

  9. Families of the Periodic Table • Column 1 – Alkali Metals • Column 2 – Alkaline Earth Metals • Column 8 (18) – Nobel Gases • Column 7 (17) – Halogens • Column 6 (16) – Oxygen Family * Column 5 (15) – Nitrogen Family **Note: Only Down to Zig Zag line for Oxygen Family and Nitrogen Family!!

  10. Families of the Periodic Table continued… Middle of the periodic table … TRANSITION METALS • Coinage Family (Cu, Ag, Au) • Lanthanides (1st row on bottom) • Actinides (2nd row on bottom)

More Related