The answer would be that the Electrons get farther from the nucleus. As you go down a group, the Period is increasing, which means that each time a shell is being added on as such the valence electron are moving further away from the nucleus. It is therefore easier for the valence electron to be removed thus why less energy is needed to remove that electron, thus a decrease in ionization energy.
Answer:400
Explanation:
20x20
P(momentum)= mxv
Mass times velocity = momentum
The heat required by the cube of iron has been 602.64 J.
The specific heat has been given as the amount of heat required to raise the temperature of 1 gram of substance by 1 degree Celsius.
The heat required has been expressed as:
<h3 /><h3>Computation for the heat required by Iron sample</h3>
The mass of the sample has been given as 55.8 g
The specific heat of tin has been, 
The change in temperature, (
) has been:
Substituting the values for the heat required:
The heat required by the cube of iron has been 602.64 J.
Learn more about specific heat, here:
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Explanation:
which question question number 20 21 fill in the blanks are the following table with appropriate information which question please write here is
The material’s temperature decreased 80 degrees celcius
