2
$\begingroup$

Can you determine the next number in the below sequence?

$1.0 , 4.0 , 6.9 , 9.0 , 10.8 , 12.0 , 14.0 , 16.0 , ?$

Bonus: Determine the next number that comes after '?'

Note: I'll post some hints if nobody gets the answer.

Hint #1: You won't get the relationship between the numbers by calculating.

Hint #2: These numbers have some relationship with science.

Improve this question
$\endgroup$
6
  • $\begingroup$ Too broad; too many answers. Voted to close. $\endgroup$
    – warspyking
    Commented Jan 3, 2015 at 14:27
  • 2
    $\begingroup$ The problem with this is that it's just a sequence. We could throw guesses at the wall all day and by the end be no closer to a solution. This type of puzzle is generally disliked on puzzling.SE, and moreover disliked as a whole. $\endgroup$
    – For I In Range
    Commented Jan 3, 2015 at 14:48
  • 4
    $\begingroup$ From seeing the answer: This is a puzzle where you either recognize the pattern or you don't. You can't get anywhere by thinking by about it. $\endgroup$
    – xnor
    Commented Jan 3, 2015 at 16:32
  • $\begingroup$ @xnor And it won't even be on OEIS (I think) because it isn't an integer sequence... $\endgroup$
    – mdc32
    Commented Jan 3, 2015 at 17:26
  • 1
    $\begingroup$ @RobWatts Never mind. oeis.org/… but you'd have to round $\endgroup$
    – mdc32
    Commented Jan 3, 2015 at 21:49

1 Answer 1

Reset to default
7
$\begingroup$

The numbers represent

Atomic weights

The next 5 numbers are

19.0, 20.2, 23.0, 24.3, and 27.0

Improve this answer
$\endgroup$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.