Question #c1f4d

1 Answer
Jose
Feb 6, 2018

#(8.8)"."10^-6# #"Coulombs"#

Explanation:

#color(blue)"Electric charge density"#

q = n e

Where,
#q#: is the symbol used to represent charge, #(C)#
n: is a positive or negative integer, #"(electrons)"#
#e#: is the electronic charge, #1.60 " x " 10^-19# #"C/electrons"#.

So, for each one:

#"Charge of one electron" = -#1.6x10^-19 C#

#"Charge of one proton" = +#1.6 x10^-19 C#

#"For more than one; the total charge is:"#

#n# = #(8.2 - 2.7)"."10^13# = #(5.5)"."10^13#

#q# = #(5.5" "10^13)# #1.60 " x" 10^-19# #"C/electrons"#

= #color(blue)(8.8 " x"10^-6)# #"Coulombs"#

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