That's right, period 7, group 1.
Fr or Francium is the most reactive alkali metal (group 1)
Francium has one valence electron, its atomic no is 87 and it belong to Ist group of periodic table.
These predictions are based on the fact that francium is a member of the alkali metals group.
Francium is the most reactive metal. Reactivity increases and you go down a family and decreases as you go across a period on the Periodic Table. Francium is the farthest left and the lowest so it is the most reactive.
Francium is amrmber of the alkali metal familiy (group 1 in the Periodic Table of Mendeleev): Li, Na, K, Rb, Cs, Fr.
we can see in the first group
That's right, period 7, group 1.
Francium is in the period 7 and group 1 of the periodic table (alkali metals).
In 1869 when D. Mendeleev designed his periodic table any element in the period 7 was known. Today francium is in the group 1, period 7, atomic number 87.
Position of francium in the Periodic Table of Mendeleev: group 1 (alkali metals), period 7, atomic number 87.
Francium is in the group 1 (alkali metals) of the periodic table.
Chromium is the element in period 4 and group 6.
Fr or Francium is the most reactive alkali metal (group 1)
Francium is a member of the alkali metals group (group 1 of the periodic table).
Francium
Francium is in the group 1 of the periodic table (alkali metals).