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0 votes
1 answer
459 views

Very elementary question about valence electrons of ionic compound

In a university entrance question, I found this question: What is the number of valence electrons of $\ce{Mg(OH)2}$? Answer = 24 I know that Mg has 2 valence electrons and O has 6. But I don't ...
titansarus's user avatar
0 votes
2 answers
253 views

How do lone electrons impact the charge of an ion?

This is a quite elementary question, but I still can't wrap my head around it. I know how to calculate the formal charges of an ion or a molecule, but I don't understand what happens when oxygen (...
user38586's user avatar
0 votes
2 answers
42k views

What is the number of unpaired electrons in Fe 2+? [closed]

Specifically, how can I find out the number of unpaired electrons in any ion?
jimpix's user avatar
  • 147
0 votes
1 answer
10k views

How many electrons does each shell hold? [duplicate]

why some times 2nd shell onward it can hold 8 electrons and other times it is like they can hold K2 L8 M18 N32? when do i have to use first method(K2 L8 M8 N8) and when to use second method (k2 L8 M18)...
student11's user avatar
0 votes
1 answer
7k views

How can I determine the quantum number of a electron lost during ion formation?

How do quantum numbers change for ions? A sample question: Give the set of four quantum numbers that could represent the electron lost to form the Rb ION from the Rb atom. The answer given is $n=...
Lesleann's user avatar
4 votes
3 answers
20k views

Is ionic bond just formed by "electrostatic" interaction between two oppositely charged ions?

According to the definition of ionic bond: An ionic bond is a type of chemical bond formed through an electrostatic attraction between two oppositely charged ions. If we consider the above ...
Sensebe's user avatar
  • 2,356