What are the number of electrons in platinum?
78 electrons
Platinum atoms have 78 electrons and the shell structure is 2.8. 18.32.
What element has 3 protons 4 neutrons and 2 electrons?
A lithium atom contains 3 protons in its nucleus irrespective of the number of neutrons or electrons.
What element has 18 protons and 22 neutrons?
Argon
So, the atomic number is also \[18\], and the element with atomic number \[18\] is Argon with the symbol \[Ar\]. Now we need to find the mass number of Argon. Since, a neutral atom of argon also has 22 Neutrons. So, it is clear that this is not an isotope but a neutral atom of Argon.
What is the neutron of platinum?
It is classified as a transition metal. Platinum atoms have 78 electrons and 78 protons with 117 neutrons in the most abundant isotope.
How many neutrons are in platinum 197?
2007 Schools Wikipedia Selection. Related subjects: Chemical elements
| iso | NA | DP |
|---|---|---|
| 196Pt | 25.3% | Pt is stable with 118 neutrons |
| 197Pt | syn | 197Au |
| 197 mPt | syn | 197Pt |
| 198Pt | 7.2% | Pt is stable with 120 neutrons |
What has 4 protons and 5 neutrons?
beryllium
4 protons, 5 neutrons, and 4 electrons are there in an atom of beryllium.
What has 4 protons and 3 neutrons?
lithium atom
A lithium atom contains 3 protons in its nucleus irrespective of the number of neutrons or electrons. Notice that because the lithium atom always has 3 protons, the atomic number for lithium is always 3. The mass number, however, is 6 in the isotope with 3 neutrons, and 7 in the isotope with 4 neutrons.
What has 16 protons and 18 neutrons?
The atomic number of sulfur is 16. The ion has 18 electrons that mean sulfur carries the charge of -2.
What has 17 protons and 22 neutrons?
Chlorine has atomic number 17. It contains 17 protons and 17 electrons. Chlorine ion (Cl) is formed when Cl gains one electron. So, Cl has 18 electrons and 17 protons.
How many valence electrons are in platinum?
Platinum Atomic and Orbital Properties
| Atomic Number | 78 |
|---|---|
| Electron Configuration | [Xe] 4f14 5d9 6s1 |
| Valence Electrons | 5d9 6s1 |
| Oxidation State | -3;-2;-1 1;2;3;4;5;6 |
| Atomic Term Symbol (Quantum Numbers) | 3D3 |
What is platinum made up of?
Natural platinum is a mixture of six isotopes: platinum-190 (0.012 percent), platinum-192 (0.782 percent), platinum-194 (32.86 percent), platinum-195 (33.78 percent), platinum-196 (25.21 percent), and platinum-198 (7.36 percent). All are stable except platinum-190, which has been reported as a long-lived alpha emitter.
How many neutrons are in platinum?