The Group of 7 (G7) started off as G6 in 1975 comprising France, West Germany, Italy, Japan, United Kingdom and United States. They were joined the following year by Canada. The G7 countries accounted for around half the global GDP and met on a regular basis to discuss global economic issues.
West Germany was, in due course, replace by Germany and, more recently, the core group has been expanded to G8 and includes Russia. There are several larger groups now - including China, Brazil, India and other major players in the global economy.
There are three possibilities:-- 7 equal groups, with 3 in each group-- 3 equal groups, with 7 in each group-- 21 equal groups, with 1 in each group
59
35
All the numbers in each group have the same modulo 3 value.
-5
Technetium is placed in the group 7 (manganese group) of the periodic table.
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Technetium is placed in the group 7 (manganese group) and period 5 of the periodic table of Mendeleev. The atomic number is 43.
Francium is in the period 7 and group 1 of the periodic table (alkali metals).
Group 7
Groups 6 and 7.
Group 7. Fluorine, which belongs to group 7, is the most reactive element.
Group seven elements have 7 electrons in their outermost energy level.
All elements in Group 7 have the same number of electrons in their outermost shell and this number corresponds to the group number.
The group which is known as the Halogen is group 7.
Group one elements are the most reactive with group 7 elements as it is the easiest way for the elements to complete their outer shell as the group one element gives its extra electron to the group 7 element and then the group 7 element has a full shell too.
they come from the class Gastropoda