the middle section of the periodic table shows the .
the columns represent the groups periods( groups, periods )
the rows represent the ❌
can group 0 also be written as group 8
group 8 6 1( 8, 6, 1 ) are very un stable stable( un stable, stable ) and very un - stable noble reactive( stable, noble, reactive ). they are liquid noble gases strong( liquid, noble, gases, strong ) gases
group 1 are metals. they are very
metal + oxygen = metal
metal + = metal + hydrogen
depending on which ❌ it is, it shows the amount of ❌ which will be on the outer shell.
if an element has 4 electrons the structure would be ❌
if an element has 19 ❌ the structure would appear like ❌
