How do you find #(6\times 2) - ( 19- [ 6\times 3] )#?
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"Which following pairs of atoms, have a lower electron affinity? a) Ca,K b) I,F c) Li, Ra. I seriously don't know anything about electron affinity all ik that it can buy another element"
1 Answer
Nov 21, 2016
11
Explanation:
You must do parentheses first and multiplications second so:
