1. Start …basic …1869 …group 1
elements
Mendeleev’s
Metal table was Li, Na and F, Cl and Br
oxides published K are… are…
are… in…
…group 7 …increasing …acidic …2
elements atomic
number
The modern The maximum
periodic number of
Non-metal He, Ne and
table is in electrons in
oxides first shell is…
Ar are…
order of…
are…
2. …Group 0 …8 …noble …alkali
elements gases metals
The maximum Group 0 Group 1
number of
elements elements
electrons in
2nd shell is…
are known are known Finish
as the … as the …