Table of Contents
What do the Element K and KR have in common?
Potassium (K) and Krypton (Kr) are in the same group, so they have the same number of valence electrons. They have different numbers of electron shells. Potassium (K) and Krypton (Kr) are in the same group, so they have the same number of valence electrons.
What are the symbols of metals?
List of Metals
| NUMBER | SYMBOL | ELEMENT |
|---|---|---|
| 12 | Mg | Magnesium |
| 13 | Al | Aluminum |
| 19 | K | Potassium |
| 20 | Ca | Calcium |
How is the technetium added to the periodic table?
When the technetium is needed, sterile saline solution is injected into the top of this device, also known as a moly cow, washing some of the technetium into a waiting vial underneath. Museum’s listing of this item. Click here to buy a book, photographic periodic table poster, card deck, or 3D print based on the images you see here!
What are the elements that follow lanthanum on the periodic table?
The elements which follow lanthanum (Z=57) and actinium (Z=89) are called the lanthanides and actinides, respectively, and together are known as the inner transition elements.
What kind of cart does technetium come in?
Technetium pig cart. This small wheeled cart is filled with tungsten and lead pigs used to hold technetium (and perhaps other) radioactive medicines in syringes. The handle is longer than you might think is necessary. This is to keep the nurse or technician far away from the contents while pushing it down the hall.
What are the transition metals in period 4?
The period 4 transition metals are scandium (Sc), titanium (Ti), vanadium (V), chromium (Cr), manganese (Mn), iron (Fe), cobalt (Co), nickel (Ni), copper (Cu), and zinc (Zn).