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4 years ago

What are the first three quantum numbers for the electrons located in subshell 2s?

Chemistry

2 answers:

Lana71 [14]4 years ago

8 0

Answer:

N=2 I=0 MI=0

Explanation:

2s the number on the left of s is the N value

I(angular momentum quantum number)=0 because the subshell is s

MI( magnetic quantum number)=0 because the subshell is s

Yanka [14]4 years ago

5 0

Answer:

<em>The first three quantum numbers for the electrons located in subshell 2 s are:</em>

n = 2
ℓ = 0
mℓ = 0

Explanation:

Each subshell may have 1 or 2 electrons.

The number 2 in the notation 2s is the first quantum number named main quantum number, n, and it identifies the principal energy level.

So, the first quantum number for any of the two electrons in the subshell 2s is 2.

The letter s is shape of the orbital and it is related with the second quantum number, named azimuthal quantum number and identified with the leter ℓ, as per this table:

Shape of the orbital Azimutal quantun number, ℓ

s 0

p 1

d 2

f 3

So, the second quantum number for any electron in 2s subshell is 0.

As for the third quantum number, it is the magnetic quantum number, identified with mℓ.

The magnetic quantum number, mℓ, can have integer values from - ℓ to + ℓ. Since ℓ = 0, the only valid number for mℓ for the subshell 2s is 0.

Summarizing, the first three quantum numbers for the electrons located in subshell 2 s are:

n = 2
ℓ = 0
mℓ = 0

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3 years ago

A block of material has a volume of 2m^3. It has a mass of 1 ×10^4 kg. Calculate the density of the material sample and express

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Answer:

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Data

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density = mass/volume

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3 years ago

When 100 ml of 1.0 M Na3PO4 is mixed with 100 ml of 1.0 M AgNO3,a yellow precipitate forms and Ag+ becomes negligibly small. Whi

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Answer:

Option A

Explanation:

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As Ag+ concentration is negligible, the dissociated Ag+ ion must have form the precipitate with phosphate ion and as number of moles of Ag+ and phosphate ion are same, therefore the concentration of phosphate ion must be negligible

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4 0

4 years ago

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