"The pattern of electrons in their atoms" is the one among the following choices given in the question that <span>causes nickel and certain other metals to be magnetic. The correct option among all the options that are given in the question is the second option or option "B". I hope that the answer has helped you.</span>
Answer:
68.2 Quadrillion meters
Explanation:
A lightyear is the distance that light travels in one year.
Speed of light is 
So light covers 300,000,000 meters in one second.
One year has 31536000 seconds so , light covers

so 7.2 light years is

so 7.2 light years is
6.82 x 10^(16) meters or
68.2 Quadrillion meters
Potassium and Chlorine is a mixture.
Answer:
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The answer is deflation...have a good day