Ionic Charge and the Periodic Table

In summary, we discussed labeling orbitals with s p d structures in grade 11 chemistry. Then, we answered the question about the 2+ ion, stating that Ca (element 20) forms a 2+ ion with the electron configuration of 1s2, 2s2, 2p6, 3s2, 3p6, 4s2. We also noted that it is common practice to use spaces instead of commas as separators. However, we also mentioned that the statement "2+ ion is the one that tends typically to form" is only true for some elements, not in general.
  • #1
JimmyRay
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Hi we're beggining to label the orbitals with s p d structures...grade 11 chemistry

The question is "Explain why the 2+ ion is the one that tends typically to form"
Ive answered the question above this one which says "Ca element 20 forms a 2+ ion. Write the electron configuration of neutral Ca and the ion Ca 2+"

So I wrote Ca: 1s2,2s2,2p6,3s2,3p6,4s2
Ca 2+: 1s2,2s2,2p6,3s2,3p6

Now to answer the question above "Explain why the 2+ ion is the one that tends typically to form" ... Well I guess because Calcium wants to become like a nobel gas, it wants to be isoelectronic to helium... Is this right? Anything else to say?
 
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  • #2
If you meant Argon instead of Helium, you would be correct. Also, just for your info, it is common practice to use spaces (rather than commas) as separators between subshells when writing out the configuration. So you might want to write Ca: 1s2 2s2 2p6 3s2 3p6 4s2

However, I do have a problem with the question as stated :
"Explain why the 2+ ion is the one that tends typically to form"
This is only true of the elements in the second group (like Mg, Ca, Ba) and some of the transition metals (d-block) but not in general. I hope this statement was intended only for Ca, and not as a general rule.
 
  • #3
thats right argon not helium lol sorry...

thanks
 

FAQ: Ionic Charge and the Periodic Table

1. What is an ionic charge?

An ionic charge is the electrical charge that an atom or molecule acquires when it gains or loses electrons. It is represented by a positive or negative sign and indicates the number of electrons gained or lost.

2. How do you determine the ionic charge of an element?

The ionic charge of an element can be determined by looking at its position on the periodic table. Elements on the left side tend to lose electrons and have a positive charge, while elements on the right side tend to gain electrons and have a negative charge. The charge of an element can also be determined by its valence electrons.

3. What is the relationship between ionic charge and the periodic table?

The periodic table is organized based on the arrangement of elements' electron configurations. This arrangement also determines the ionic charge of an element. Elements in the same group have similar ionic charges, as they have the same number of valence electrons.

4. Can an element have more than one ionic charge?

Yes, some elements can have more than one ionic charge. This is known as having multiple oxidation states. For example, iron can have a 2+ or 3+ ionic charge.

5. How does the ionic charge affect an element's chemical properties?

The ionic charge of an element plays a significant role in its chemical properties. Elements with a positive charge tend to lose electrons and form positive ions, while elements with a negative charge tend to gain electrons and form negative ions. This affects their reactivity, bonding, and other chemical properties.

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