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10 questions
what # of element H ?
1
11
10
111
what the first element of periodic table?
K
He
H
Li
what fifth element of periodic table?
Mn
Fe
Ga
B
the last element of periodic table ....
Fl
Og
H
Ag
№2 is....
Helium
Berylium
Neon
Calcium
is Lithium #2?
yes
no
the # of Neon is ?
11
9
10
8
which element is gonna be of # 30 ?
Ni
Ge
H
Zn
is Baron #6 ?
yes
no
how many elements in periodic table?
120
118
100
119
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