Boron is one position to the left of carbon on the periodic table. The atomic nurnber of carbon is 6. Given its position on the periodic table, what is the atomic number of boron?

1 Answer
anor277
Aug 10, 2018

Is not #Z=5#...?

Explanation:

The 100 or so elements are characterized by #Z_"atomic number"#...which specifies the number of charged particles present in the element's nucleus. #"Z=1, hydrogen; Z=2, helium"#
#"Z=3, lithium; Z=4, beryllium; Z=5, boron; Z=6, carbon;"# #"Z=7, nitrogen..."#

And if you are doing your chemistry homework, there should be a copy of the Table beside you...

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