How many dots does MG have?
How many dots does MG have?
element. The electron-dot symbol for Mg shows two valence electrons as single dots on the sides of the symbol Mg.
Is NE 22 stable?
Neon (10Ne) possesses three stable isotopes, 20Ne, 21Ne, and 22Ne. The least stable is 15Ne with a half-life of 7.7×10−22 s.
Why is Li not a stable ion?
Why is Li− not a stable ion? A lithium atom has 1 valence electron . After losing one electron lithium turns into which has the two electrons in its valence shell. Electron configuration of is similar to the nearest noble gas configuration.
Why is chlorine ion stable?
Chlorine has an exothermic electron affinity, so the chloride ion may be considered more stable than the atom, despite the atom’s neutrality. 17. The common Cl– anion is clearly more stable than the highly charged Cl11– ion.
How many unstable elements are there?
For each of the 80 stable elements, the number of the stable isotopes is given. Only 90 isotopes are expected to be perfectly stable, and an additional 162 are energetically unstable, but have never been observed to decay….Tables.
| Element | krypton |
|---|---|
| unstable in italics odd neutron number in pink | 84 Kr |
| 86 Kr | |
| 82 Kr | |
| 83 Kr |
Which is more stable I or F?
The explanation is that I- would have a much larger area to balance out the negative charge compared to F-, and the anion would be more stable as a result.
Is Br or Cl more basic?
So if fluorine were the most electronegative in terms of acidity, it would be the opposite in terms of base classification. The F would be the strongest base, followed by the Cl, the Br, and lastly, the I.
Which is more electronegative F or I?
Electronegativity increases from bottom to top in groups, and increases from left to right across periods. Thus, fluorine is the most electronegative element, while francium is one of the least electronegative.