What are the 100 elements?
What are the 100 elements?
118 Elements and Their Symbols and Atomic Numbers
| Name of the Element | Symbol of the Element | Atomic Number |
|---|---|---|
| Fermium | Fm | 100 |
| Mendelevium | Md | 101 |
| Nobelium | No | 102 |
| Lawrencium | Lr | 103 |
What are Element 90 103 called?
The Actinides
The Actinides. The actinides, elements 90-103, follow actinium on the periodic table.
What element has a mass of 91?
Protactinium
| Name | Protactinium |
|---|---|
| Symbol | Pa |
| Atomic Number | 91 |
| Atomic Mass | 231.036 atomic mass units |
| Number of Protons | 91 |
What is the 92 element?
Uranium
Uranium- is a silver-fray metallic chemical element. Uranium is in the periodic table that has a symbol U and atomic number 92. It also has the highest atomic weight of the naturally occurring elements. Uranium is atomic number 92 and can have different numbers of neutrons in the nucleus from 141 to 146.
Why are actinides called actinides?
Actinides are the 15 elements with atomic numbers from 89 to 103. They are named after the first element in the series, actinium. The actinides are most known for the elements uranium and plutonium which are used in nuclear reactors and nuclear bombs.
What is the atomic mass of magnesium?
24.305 u
Magnesium/Atomic mass
What are the 4 types of elements?
Elements can be classified as metals, metalloids, and nonmetals, or as a main-group elements, transition metals, and inner transition metals.
What are the 20 to 30 elements?
Atomic Number of Elements from 1 to 30
| Atomic Number | Element | Atomic Mass |
|---|---|---|
| 20 | Calcium | 40.078 |
| 21 | Scandium | 44.956 |
| 22 | Titanium | 47.867 |
| 23 | Vanadium | 50.942 |