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ladessa [460]
3 years ago
13

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 QUES

TION. 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.
^
|
|
Help on that plz
Chemistry
1 answer:
Ne4ueva [31]3 years ago
4 0

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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andre [41]

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A link to this experiment is below in the comment box


7 0
2 years ago
HELP PLEASE WITH 1 QUESTION.
Nata [24]
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Thus, your list of metals would go from most reactive to least reactive: Li, K, Mg, Zn, Fe, Cu, Au
8 0
3 years ago
A student with an unknown code of Q3A conducts a qualitative analysis of her unknown. Her results indicated the formation of a y
insens350 [35]

Answer:

Grey precipitate implies the presence of silver ions

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Explanation:

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In the question, a precipitate containing silver ions upon standing turn into grey colour. Similarly, lead II ions give a yellow precipitate.

6 0
2 years ago
consider the balanced chemical equation below. when the chemical reaction was carried out calculated theoretical was yield for s
8_murik_8 [283]

Answer:

Explanation:

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For this question,

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7 0
3 years ago
A horizontal row on the periodic table is called a______________________? Please help !!!!!!!!
ad-work [718]

Answer:

Period

Explanation:

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7 0
3 years ago
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