Where is the element germanium found?
Germanium is primarily mined with zinc ore as well as with argyrodite, germanite, and coal according to the Los Alamos National Laboratory. According to Chemistry Explained, germanium is mined in Alaska, Tennessee, China, the United Kingdom, Ukraine, Russia and Belgium.
Which is not a noble gas?
Hydrogen is not a noble gas as it has one electron in its shell and it is not stable unlike noble gases which are having 2,8,8 electrons in their outer shell.
Which element is a noble gas ne or Br or O?
Group 8A (or VIIIA) of the periodic table are the noble gases or inert gases: helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn). The name comes from the fact that these elements are virtually unreactive towards other elements or compounds.
Which element is the most active nonmetal?
Chlorine
Which element is the most active metal?
The most reactive metal on the periodic table is francium. Francium, however, is a laboratory-produced element and only minute quantities have been made, so for all practical purposes, the most reactive metal is cesium.
Which element is the most active in Group 17?
FLUORINE
Which period is CA in?
Fact box
| Group | 2 | 842°C, 1548°F, 1115 K |
|---|---|---|
| Period | 4 | 1484°C, 2703°F, 1757 K |
| Block | s | 1.54 |
| Atomic number | 20 | 40.078 |
| State at 20°C | Solid | 40Ca |
What are 3 interesting facts about calcium?
Just the facts
- Atomic number (number of protons in the nucleus): 20.
- Atomic symbol (on the periodic table of the elements): Ca.
- Atomic weight (average mass of the atom): 40.078.
- Density: 1.55 grams per cubic centimeter.
- Phase at room temperature: solid.
- Melting point: 1,548 degrees Fahrenheit (842 degrees Celsius)