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As the angle of incidence is increased, angle of deviation 'd' decreases and reaches minimum value. If the angle of incidence is further increased, the angle of deviation is increased. Let dm be the angle of minimum deviation. The refracted ray in the prism in that case will be parallel to the base.

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What happens to the reactivity of a nonmetal when you move from left to right in a group?

The reactivity of a non metal decreases as you move down a group. This is because the size of the atomic radius increases and when the distance to the nucleus increases, the force of attraction decreases. Electrons are not pulled as strongly to larger atoms, and so larger atoms are not as reactive.


Why does density of water below 0 degree Celsius first decreases then increases?

First decreases then increases ... as what changes, exactly? The point of maximum density for liquid water occurs at 3.98 degrees Celsius. This is mainly due to some semi-complicated effects from hydrogen bonding, which is stronger in water than in nearly any other substance.


What is the Trend in first ionization energy across a period?

As one proceeds down the group 7A elements, the first ionization energy decreases. this means that the outermost electron is more readily removed as we go down a group.


Describe the trends in first ionization energy within groups and across periods in the periodic table Provide examples?

Within a group, first ionization energy generally decreases as you move down the group due to increasing atomic size and shielding effects. Across a period, first ionization energy generally increases due to increasing nuclear charge and effective nuclear charge. For example, within Group 2 (alkaline earth metals), the first ionization energy decreases as you move down the group from Be to Ra. Across Period 3, the first ionization energy increases from Na to Cl.


How does the first ionization energy change going down and across the periodic table?

As you move down a group on the periodic table, the first ionization energy generally decreases due to the increasing atomic size and shielding effect of inner electrons. Across a period, the first ionization energy generally increases because the effective nuclear charge increases, making it harder to remove an electron.

Related Questions

What is the angle of minimum deviation in a diffraction experiment?

The angle of minimum deviation in a diffraction experiment is the angle at which the diffracted light rays are the most spread out, resulting in the best separation of the different colors. It is typically smaller than the angle of the first diffraction minimum to achieve maximum dispersion.


As you go from left to right across a period the first ionization energy generally decreases or increases?

increases.


What happens when inventory in base year dollars decreases?

Last in First out reserve increases


What are the stages if development organisms go through as they grow and develop?

At first body mass increases and then decreases.


What happens to the reactivity of a nonmetal when you move from left to right in a group?

The reactivity of a non metal decreases as you move down a group. This is because the size of the atomic radius increases and when the distance to the nucleus increases, the force of attraction decreases. Electrons are not pulled as strongly to larger atoms, and so larger atoms are not as reactive.


What is the trend found in Period 3 on the Periodic Table as the elements increase in atomic number?

1-Atomic size = decreases 2-Ioniztion energy = increases 3-Electronegativity = increases (except Argon) 4-Metallic character = decreases 5-Melting point = first increases then decreases


Why does density of water below 0 degree Celsius first decreases then increases?

First decreases then increases ... as what changes, exactly? The point of maximum density for liquid water occurs at 3.98 degrees Celsius. This is mainly due to some semi-complicated effects from hydrogen bonding, which is stronger in water than in nearly any other substance.


What happens as we move down columns on the periodic table?

As you move down a column (group) in the periodic table, the electronegativity decreases, the ionization energy decreases, the electron affinity decreases, and the atomic radius increases.


When temperature increases resistance increases and conduction decreases why is this is so?

Generally when temperature increases, resistance increases and conduction decreases in metals. In semiconductors, this is generally inverted. First, when temperature increases, the molecular activity of the material increases, making the energy (and activity) of the atoms to be higher. This can make it more difficult for the electrons to participate in the cascade effect that we call electric current, hence increased resistance. Second, conductance is defined as the inverse of resistance; if resistance goes up, then conductance goes down, and vice versa.


How do you find the first deviation?

To find the first deviation of a dataset, you first calculate the mean (average) of the data points. Then, for each data point, subtract the mean to find the deviation from the mean. The first deviation is typically the result from the first data point, which is the difference between that data point and the mean. This process helps in understanding how each data point varies from the average.


What happenes to the temperature as you ascend into the first three layers of the atmosphere?

In the troposphere (first layer), temperature usually decreases with altitude, known as the tropospheric lapse rate. In the stratosphere (second layer), temperature remains constant or increases slightly with altitude due to the presence of the ozone layer. In the mesosphere (third layer), temperature decreases again with altitude.


What is the Trend in first ionization energy across a period?

As one proceeds down the group 7A elements, the first ionization energy decreases. this means that the outermost electron is more readily removed as we go down a group.