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BigorU [14]
2 years ago
7

Write the electronic configuration for 40/20 Ca

Chemistry
1 answer:
KiRa [710]2 years ago
3 0

Answer:

[AR] 4s². EC(Ca)=1s² 2s² 2p⁶ 3s² 3p⁶ 4s²

S=shell

²or⁶ is number of electrons

Explanation:

the number of electrons for the calcium atom is 20 show the first two electrons of calcium will go in the 1s² orbital. the next two electron will go in the 2s orbital and the next 6 electron will go in the 2p orbital.

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Different isotopes of the same element must have a different
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What type of product is formed when acids are added to some ionic compounds?
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3 0
1 year ago
A 25.00 mL sample of the ammonia solution
musickatia [10]

Answer:

1.634 molL-1

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Using the dilution equation;

C1V1 = C2V2

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Final Volume, V2 =  250 mL

Final Concentration, C2 = 0.1634 molL-1

Solving for C1;

C1 = C2 * V2 / V1

C1 = 0.1634 * 250 / 25.00

C1 = 1.634 molL-1

3 0
3 years ago
Which of the following describes a covalent bond?
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5 0
3 years ago
Read 2 more answers
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