What mass of aluminum has a total nuclear charge of 2.9 c?
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Ответ:
Complete Question
What mass of aluminum has a total nuclear charge of 2.9 C?
Aluminum has atomic number 13. Suppose the aluminum is all of the isotope with 14 neutrons.
The mass is![T_m = 6.252 *10^{-5}\ g](/tpl/images/0737/9039/578d1.png)
Explanation:
From the question we are told that
The total nuclear charge is![q = 2.9 \ C](/tpl/images/0737/9039/0cb68.png)
The atomic number is![u = 13](/tpl/images/0737/9039/07c25.png)
The number of neutron is![k = 14](/tpl/images/0737/9039/70263.png)
Generally the number of positive charge is mathematically represented as
here p is the charge on a single proton with value![p = 1.60*10^{-19} \ C](/tpl/images/0737/9039/e0613.png)
So
=>![N = 1.813*10^{19} \ protons](/tpl/images/0737/9039/64dc4.png)
Now since 1 atom contains 13 proton
The number of atoms present is
Then the number of moles present is mathematically represented as
Where N_k is the Boltzmann constant with value
So
Generally one mole of aluminum is equal to 27 g
So
The total mass of aluminum is
=>![T_m = 2.315 *10^{-6} * 27](/tpl/images/0737/9039/c833f.png)
=>![T_m = 6.252 *10^{-5}\ g](/tpl/images/0737/9039/578d1.png)
Ответ:
An electron microscope can be used to magnify things over 500,000 times, enough to see lots of details inside cells. There are several types of electron microscope. A transmission electron microscope can be used to see nanoparticles and atoms.