Magnesium belongs to group-2. Its configuration is 2 8 2.
Francium has one valence electron, its atomic no is 87 and it belong to Ist group of periodic table.
Together with bromine and fluorine they belong to the 'halogenes', group 7 in the periodic table.
Alkali earth metals belong to group 1 in the periodic table..
Hydrogen is mostly said to belong to Alkali metals group because it has one electron in its outermost shell. and has an oxiation state of +1. But it also sometimes place on the top of Halogens since it also one less electron than completion of orbital and sometimes an oxidation state of -1. Hydrogen is a controversial element for periodic table.
Sulfur (S, element number 16) is on the third period of the periodic table.
The group to which the element belongs and, therefore, its chemical properties.
Calcium and Magnesium both belongs to second group.They both are Alkaline Earth Metals.Magnesium has 12 atomic number where as Calcium has 20 atomic number.
Magnesium belongs to the metal faimly
They have a electron of last energy level. so they are in the s block.
Electron
Group 7 of the periodic table.
Francium has one valence electron, its atomic no is 87 and it belong to Ist group of periodic table.
All chemical elements are placed in the periodic table.
A group is a vertical column on the periodic table. The elements in a group have very similar chemical properties because their outer electron configuration is the same. Ex: the first column on the left, Li, Na, K etc. Each of these has one outer electron, causing each to react in very similar ways. They lose that electron and form a positive ion.
metals
geg
alkali