Answer:
Atomic mass of an element is not a whole number because It contains isotopes. For example, chlorine has two isotopes 1735Cl and 1737Cl with natural abundances in the approximate ratio of 3:1. Hence, the average atomic mass of chlorine is approximately 35.5 g/mol.
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Not necessarily, rain needs some mechanism such as instability of vertical air movement..
The answer is B, the number of protons
It's is the unique thing about every element!
4.01 kg in grams :
4.01 x 1000 = 4010 g
Density = mass / volume
7.86 = 4010 / volume
Volume = 4010 / 7.86
Volume = 510.17 cm³
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Explanation:
The given data is as follows.
Cross-section area of the rectangular is as follows.
Area = 
= 
= 
Tension applied on the specimen is 35,500 N
Now, formula to calculate the modulus of elasticity for a material of aluminium is as follows.
E = 70 GPa
= 
or, = 
Now, stress on the specimen is as follows.

= 
= 
According to Hook's law, we will calculate the resulting stain as follows.


= 
=
Thus, we can conclude that the resulting strain is
.