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OK SO HERES HOW ITS GONNA GO. IMA ASK YOU GUYS ONE MORE TIME BC THIS IS LIKE THE 3RD TIME IVE WAISTED MY POINTS IN THE SAME QUESTION. IGHT JUST TRY.

MY TEACHER PIS.S.ES ME OFF I NEED HELP I SWEAR.

Question:
Give the electron configuration for the calcium ion. (2points)

My Answer:
(AR)4s^2

0/2 points

Teachers response:
This is asking for the ion and that is the neutral configuration. Write out the whole thing.
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Help on that plz

Respuesta :

Answer:

Electronic Configuration of calcium ion: Ca²⁺

1s², 2s², 2p⁶, 3s², 3p⁶

Explanation:

Calcium belong to group IIA and known as alkaline earth metals.

  • it have two electrons in outer most orbital.
  • these outer two electrons are involve in bonding
  • calcium lose these two electron and form cation
  • cation have 2+ charge
  • calcium have total twenty electrons

Electronic Configuration of calcium atom: ²⁰Ca

1s², 2s², 2p⁶, 3s², 3p⁶, 4s²

When calcium ion is form it loses two electron and have 2+ charge on it.

and have total of 18 electrons

So,

Electronic Configuration of calcium ion: Ca²⁺

the last filled orbital will be 3p⁶

1s², 2s², 2p⁶, 3s², 3p⁶

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