An object has a mass of 48g and it has a height of 5cm, a width of 2cm and a length of 5cm.
1 answer:
Answer:
0.96g/cm³
Explanation:
Given parameters:
Mass of the object = 48g
Height of the object = 5cm
Width of the object = 2cm
Length of the object = 5cm
Unknown:
Density = ?
Solution:
Density of a body is the mass per unit volume of the body.
Mass is the amount of matter in a substance
Volume is the space such a body occupies
To find the volume;
Volume = l x w x h
Insert the parameters and solve;
Volume = 5cm x 2cm x 5cm = 50cm³
Density =
Density = = 0.96g/cm³
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Answer:
Explanation:
Group 4A contains a total of 4 electrons for each atom in their valence shell. Filling the orbital diagram, let's say, for carbon, notice that when we start with period 2, we have two elements in the s-block, that is, lithium and beryllium. They correspond to the two s electrons that belong to the valence shell of carbon.
Moving on, we have boron and carbon, the remaining 2 electrons. Now, starting with boron, we're in the p-block.
That said, looking at the second period, the electron configuration for the valence shell of a group 4A element would be: