Seaborgium (Sg): Bohr Model, Protons, Neutrons & Electrons
Seaborgium is element number 106, a superheavy in group 6, period 7. Its atom has 106 protons, 163 neutrons and 106 electrons arranged in 7 shells: 2, 8, 18, 32, 32, 12, 2.
Protons, neutrons and electrons in seaborgium
ال atomic number of seaborgium is 106, so every seaborgium atom has 106 protons. A neutral atom has the same number of electrons, 106. The number of neutrons depends on the isotope: neutrons = mass number − atomic number. For seaborgium-269, that is 269 − 106 = 163 neutrons. Every isotope of seaborgium is radioactive; 269 is the mass number of its most stable one.
How to draw the Bohr model of seaborgium
- Draw the nucleus and write 106 p⁺ تم تصميم [الخدمة] لمتعلمين من جميع الأعمار، بما في ذلك طلاب المدارس. 163 n⁰ inside it.
- Draw the first shell and put 2 electrons on it (the first shell holds at most 2).
- Draw the second shell and put 8 electrons on it.
- Draw the third shell and put 18 electrons on it.
- Draw the fourth shell and put 32 electrons on it.
- Draw the fifth shell and put 32 electrons on it.
- Draw the sixth shell and put 12 electrons on it.
- Draw the seventh shell and put 2 electrons on it.
- Check: 2 + 8 + 18 + 32 + 32 + 12 + 2 = 106 electrons, the same as the number of protons.
From potassium onwards the shells don’t simply fill as 2, 8, 8: the fourth shell starts before the third is full, so the real arrangement above (2, 8, 18, 32, 32, 12, 2) is the one to draw.
Electron configuration
The electron configuration of seaborgium is [Rn] 7s² 5f¹⁴ 6d⁴. As a superheavy it fills an inner d-subshell, and its common ion is variable.
Key facts about seaborgium
| Symbol | Sg |
|---|---|
| Atomic number | 106 |
| Relative atomic mass | [269] |
| Group · period · block | group 6 · period 7 · d-block |
| نوع | Superheavy |
| State at 25 °C | unknown |
| أغلفة الإلكترون | 2, 8, 18, 32, 32, 12, 2 |
| Electron configuration | [Rn] 7s² 5f¹⁴ 6d⁴ |
| Valence electrons | varies (outer shell: 2) |
| Common ion | — |
| Electronegativity (Pauling) | — |
| First ionisation energy | — |
| Atomic radius (empirical) | — |
Where seaborgium sits on the periodic table
الأسئلة الشائعة
How many protons, neutrons and electrons does seaborgium have?
Seaborgium has 106 protons and 106 electrons (atomic number 106). Its most common isotope, seaborgium-269, has 269 − 106 = 163 neutrons.
What is the electron configuration of seaborgium?
[Rn] 7s² 5f¹⁴ 6d⁴. In shells that is 2, 8, 18, 32, 32, 12, 2.
How many valence electrons does seaborgium have?
Seaborgium is a superheavy, so its valence electrons are spread over two shells; its outermost shell holds 2.
Where is seaborgium on the periodic table?
In group 6, period 7, in the d-block. It is a superheavy.
