How many outer electrons does astatine have?
seven electrons
The Group 7 elements – fluorine (F), chlorine (Cl), bromine (Br), iodine (I) and astatine (At) – have seven electrons in the outer shell.
How many electrons are in the element Cr?
24 electrons
In order to write the Chromium electron configuration we first need to know the number of electrons for the Cr atom (there are 24 electrons).
How many valence electrons does astatine?
Astatine Atomic and Orbital Properties
| Atomic Number | 85 |
|---|---|
| Shell structure (Electrons per energy level) | [2, 8, 18, 32, 18, 7] |
| Electron Configuration | [Xe] 4f14 5d10 6s2 6p5 |
| Valence Electrons | 6s2 6p5 |
| Oxidation State | -1 1;3;5;7 |
What is the electron configuration of astatine?
[Xe] 4f¹⁴ 5d¹⁰ 6s² 6p⁵Astatine / Electron configuration
How many neutrons does astatine-210 have?
Astatine (At). Diagram of the nuclear composition, electron configuration, chemical data, and valence (outer electron) orbitals of an atom of astatine-210 (atomic number: 85), an isotope of this element. The nucleus consists of 85 protons (red) and 125 neutrons (orange).
What is the atomic radius of astatine?
200 pmAstatine / Van der Waals radius
What group is Cr?
Group 6
Fact box
| Group | 6 | 1907°C, 3465°F, 2180 K |
|---|---|---|
| Atomic number | 24 | 51.996 |
| State at 20°C | Solid | 52Cr |
| Electron configuration | [Ar] 3d54s1 | 7440-47-3 |
| ChemSpider ID | 22412 | ChemSpider is a free chemical structure database |
How many 3d electrons are in Cr?
five 3d electrons
An atom Cr has one 4s electron and five 3d electrons.
How many neutrons does astatine 210 have?
How many protons are in an atom of astatine-210?
What is the atomic radius of astatine in NM?
Details:
| Electrical Conductivity | |
|---|---|
| Atomic Radius (nm) | |
| Covalent Radius (nm) | |
| Density (g-1 dm3) | |
| Structure | [Xe]4f14 5d10 6s2 6p5 |
What is the atomic radius of C?
170 pmCarbon / Van der Waals radius