Quantcast
Follow us On YouTube Follow us On FaceBook



or
Search Language
Browse
Medical Animations
Medical Animation Titles
Custom Legal Animations
Patient Health Articles
Custom Interactive
Most Recent Uploads
Body Systems/Regions
Anatomy & Physiology
Diseases & Conditions
Cells & Tissues
Diagnostics & Surgery
Cardiovascular System
Digestive System
Integumentary System
Nervous System
Reproductive System
Respiratory System
Back and Spine
Foot and Ankle
Head and Neck
Hip
Knee
Shoulder
Thorax
Medical Specialties
Cancer
Cardiology
Dentistry
Editorial
Neurology/Neurosurgery
Ob/Gyn
Orthopedics
Pediatrics
Account
Administrator Login
Biology: Chemistry in Biology: 03: Periodic Table - Medical Animation
 
This animation may only be used in support of a single legal proceeding and for no other purpose. Read our License Agreement for details. To license this animation for other purposes, click here.

If animation does not play, download and install the latest free Flash Player plugin.
More Like ThisAdd To Lightbox NSV15014 Enlarge Share
Ready to Purchase?

$999.00

Order by phone: (800) 338-5954
Item #NSV15014Source #1

Biology: Chemistry in Biology: 03: Periodic Table - Medical Animation
MEDICAL ANIMATION TRANSCRIPT: In this video, we'll discuss the periodic table of elements. A chart called the periodic table of the elements organizes all of the known elements. Rows in the periodic table are called periods, and columns are called groups or families. A section from each of the two bottom periods has been pulled out and placed below the table to avoid making the table too wide. The elements are organized left to right and top to bottom by their atomic number, meaning the number of protons in one atom of the element. Each box shows an element represented by its unique symbol. The smaller number next to each element's symbol represents the atomic number. The atomic number increases by one as you go from left to right across each period. The larger number represents the atomic mass. Notice that the atomic mass of many elements is a decimal number rather than a whole number. This is because the atomic mass is a weighted average of the mass numbers for the isotopes of an element. A weighted average takes into account how common each isotope of an element is in nature. The most common isotope counts for much more in the average than less common isotopes, just like a final exam may count more than quizzes towards your grade in a class. Notice that the atomic mass isn't the same as mass number, which is simply the total number of protons and neutrons in the nucleus of a particular isotope. However, you can determine the mass number of an element's most common isotope by rounding its atomic mass up or down to the nearest whole number. You can do this because the most common isotope has the most influence on the atomic mass. Round up if an element's atomic mass ends in .5 or greater, round down if an element's atomic mass ends in less than .5. Let's look at some examples from the periodic table. Helium has an atomic mass of 4.003. We can easily round that down to get a mass number of 4. We can also see that helium's atomic number is 2, which means it has 2 protons. Now, we can subtract the atomic number from the mass number to see that the most common isotope of helium has 2 neutrons. In the case of oxygen, we can round its atomic mass up to get a mass number of 16. Since its atomic number is 8, we know oxygen has 8 protons. And by simple subtraction, we can determine oxygen also has 8 neutrons. How does this work in a less common isotope of an element, such as hydrogen-3? The most common hydrogen isotope is hydrogen-1, as you can see from rounding the atomic mass listed in the periodic table. Recall that isotopes are identified by their mass number. So, we know hydrogen-3's mass number is 3. So, we can subtract hydrogen's atomic number of 1 from its mass number and see that hydrogen-3 has 2 neutrons. In summary, the periodic table is an organization chart of all the known elements. Each element is represented by its symbol, atomic number, and atomic mass. Elements are arranged left to right and top to bottom by increasing atomic number. An element's atomic mass is a weighted average of its isotope's mass numbers. Round the element's atomic mass up or down to find the mass number of its most common isotope. [music]

YOU MAY ALSO WANT TO REVIEW THESE ITEMS:
Incompetent Cervix During Early Labor
Incompetent Cervix During Early Labor - exh5235
Medical Exhibit
Add to my lightbox
Find More Like This
Surgical Repair of Facial Fractures
Surgical Repair of Facial Fractures - exh39797c
Medical Exhibit
Add to my lightbox
Find More Like This
Anatomy of the Neck and Torso (male)
Anatomy of the Neck and Torso (male) - NC3D00301
Medical Illustration
Add to my lightbox
Find More Like This
Tactile: Deep Pressure (Trunk)
Tactile: Deep Pressure (Trunk) - V0080000168sens05
Medical Illustration
Add to my lightbox
Find More Like This
Laparoscopic Ventral Hernia Repair
Laparoscopic Ventral Hernia Repair - exh36498-nl
Medical Exhibit
Add to my lightbox
Find More Like This
Tear of Patellar Tendon and Retinaculum
Tear of Patellar Tendon and Retinaculum - FC00098
Medical Illustration
Add to my lightbox
Find More Like This
What attorneys say about MLA and The Doe Report:
"The illustrations have consistently been well documented, accurate and timely. Most important though is that the illustrations demonstrate to juries and claims people the persuasive power of visual communication. Our firm has achieved multiple eight figure settlements and verdicts over the past ten years... Medical Legal Art has been there with us on every case."

Thomas C. Jones
Davis, Bethune & Jones, L.L.C.
Kansas City, MO
www.dbjlaw.net

"We are extremely pleased with the quality of the medical exhibits and the timely manner in which they were provided. I will certainly recommend your company to my business associates who could benefit from your services. Please tell Brian Wilson [Director of Content Development, Senior Medical Illustrator] that he did an exceptional job on these exhibits."

K. Henderson
Dunaway and Associates
Anderson, SC

"I wanted to thank you for the terrific job you did illustrating my client's injuries. The case was settled at the pre-suit mediation, and I believe a good part of the success we had was due to the medical legal art you prepared.

Your work received the ultimate compliment at the conclusion of the mediation. The hospital risk manager took the exhibit with them at the conclusion of mediation, and will be using it to train nurses on how to prevent bed sores..."

Steven G. Koeppel
Troy, Yeslow & Koeppel, P.A.
Fort Myers, FL

"Thank you for the wonderful illustrations. The case resulted in a defense verdict last Friday. I know [our medical expert witness] presented some challenges for you and I appreciate how you were able to work with him."

Robert F. Donnelly
Goodman Allen & Filetti, PLLC
Richmond, VA













Awards | Resources | Articles | Become an Affiliate | Free Medical Images | Pregnancy Videos
Credits | Jobs | Help | Medical Legal Blog | Find a Lawyer | Hospital Marketing