Describe the elements with serial numbers 6 and 8.

The chemical element that is numbered 6 in the periodic table is carbon (C).
He is in the second period (small), in the fourth group (main subgroup).
The relative atomic mass is 12
The number of electrons is 6, the number of protons is 6, the number of neutrons is 6
Electronic formula:
+ 6C) 2) 4 1s2 2s2 2p2
At the last energy level there are 4 electrons, the level is not complete.
The highest valency is IV
Higher oxide CO2, is it acidic in nature? then it corresponds to acid H2CO3
Hydrogen compound CH4
The chemical element that is numbered 8 in the periodic table is oxygen (O).
He is in the second period (small), in the sixth group (main subgroup).
The relative atomic mass is 16
The number of electrons is 8, the number of protons is 8, the number of neutrons is 8
Electronic formula:
+ 8O) 2) 6 1s2 2s2 2p4
At the last energy level there are 6 electrons, the level is not complete.
The oxygen valence is constant and equal to II