Add up the total number of electrons: 2+8+6=16.
So if it is an atom in the ground state it will be the one with 16 electrons. It will also have 16 protons, and therefore be atomic number 16. Look on the Periodic Table to find number 16.
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The rule is +-= - --=- -+= - ++=+ S0: -6 + -8 -6 - 8, which equals -14.
here are all the possible combinations 6(12)+8 6(10)+10(2) 6(9)+8(2)+10 6(8)+8(4) 6(7)+8+10(3) 6(6)+8(3)+10(2) 6(5)+8(5)+10 6(5)+10(5) 6(4)+8(2)+10(4) 6(4)+8(7) 6(3)+8(4)+10(3) 6(2)+8+10(6) 6(2)+8(6)+10(2) 6+8(3)+10(5) 6+8(8)+10 8(10) 8(5)+10(4) 10(8)
Z is equal to 6. Z+2=8 8-2=6 Z=6
2 x 2 + 8 - 6 = 6