Atoms of the element beryllium would most likely behave similar to the way _______ behaves.
2 answers:
<u>Answer:</u> The correct answer is Option B.
<u>Explanation:</u>
Beryllium is the 4th element of the periodic table having electronic configuration . This element belongs to Group 2 of the periodic table.
Elements that belong to same group show similar chemical properties because they have same number of valence electrons.
For the given options:
<u>Option A:</u> Hydrogen
This element belong to group 1 of the periodic table.
<u>Option B:</u> Calcium
This element belong to group 2 of the periodic table. Thus, this will show similar chemical properties to beryllium.
<u>Option C:</u> Lithium
This element belong to group 1 of the periodic table.
<u>Option D:</u> Boron
This element belong to group 13 of the periodic table.
Hence, the correct answer is Option B.
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1) 385 J
2) 450 J
Explanation:
1)
The amount of energy that must be absorbed by a certain substance in order to increase its temperature by is given by the equation:
where
m is the mass of the substance
C is its specific heat capacity
is the increase in temperature of the substance
For the block of copper in this problem, we have:
m = 10 g is the mass
is the specific heat capacity of copper
is the change in temperature
So, the energy absorbed by the block of copper is
2)
Similarly for the block of iron, the energy absorbed by the iron is given by
where
m is the mass of the block of iron
C is its specific heat capacity of iron
is the increase in temperature of the block
Here we have:
m = 10 g is the mass of the block
is the specific heat capacity of iron
is the change in temperature
So, the energy absorbed by the block of iron is