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Phantasy [73]
3 years ago
14

What causes the shielding effect to remain constant across a period?

Chemistry
1 answer:
Ivanshal [37]3 years ago
5 0
Electrons are added to the same principal energy level.
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If the radius of copper is 0.128 nm, what is the pd of the (100) plane for copper in m-2?
kolbaska11 [484]

Copper has a FCC i.e. face centered cubic crystal structure. The 100 plane is essentially a planar section of the cubic cell where 4 Cu atoms occupy the 4 corners of the plane along with 1 Cu atom at the center of that plane. Each of the Cu atoms in the corners is shared by 4 adjacent unit cells. Thus, there are 2 Cu atoms present in the 100 plane (4*1/4 + 1 = 2).

Now, the planar density PD along the 100 plane is given as:

PD(100) = # atoms in the 100 plane/Area of 100 plane

            = \frac{2}{8R^{2} }

Here R = radius = 0.128 nm = 0.128*10^{-9} m

PD = \frac{2}{8*(0.128*10^{-9}) ^{2} } = 1.526*10^{19} m^{-2}

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3 years ago
Activity/Exercises: Kobe has been living in a coastal barangay for 30 years. Recently, he noticed that during high tides, water
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6 0
2 years ago
What comes last in the scientific method
azamat
Hypothesis


Therefore the last step in the scientific method is proposing a hypothesis or obtaining a conclusion
6 0
3 years ago
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Which of the following has the same empirical and molecular formula?
White raven [17]

Answer:

O C4H8

Explanation:

5 0
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If carbon has the electron configuration of (2,4) what would the electron configuration of the element to the right of it on the
Svetllana [295]

Answer:

2,5

Explanation:

When move from left to right in periodic table atomic number increases. So element to the right of carbon has one electron more than carbon therefore it's electronic configuration would be 2,5

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