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GuDViN [60]
3 years ago
9

An electron has an atomic mass of 5.4 x 10-4. If a carbon atom has 6 electrons, what is the combined atomic mass of the electron

s in a single Carbon atom? Answer in scientific notation.
A) 3.24 x 10-3
B) 3.24 x 10-4
C) 3.24 x 10-5
D) 32.4 x 10-4
Mathematics
2 answers:
Gwar [14]3 years ago
4 0
<span>6*5.4*10^(-4)
=32.4*10^(-4)
move the decimal point, in scientific notation you only have a single digit with comma
=3.2*10^(-3)

so option A

to know if you have to increase or decrease the exponent you can write the intermediary steps out:</span>
32.4*10^(-4)=32.4/10^4=<span>(3.24*10)/(10*10^3)
reduce the fraction and you have the above solution
</span>
Alexandra [31]3 years ago
3 0

Answer:

Answer is A


Step-by-step explanation:


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