Mg, Magnesium(note the "s" not a "z"), element 12, group 2 period 3
It is in group 2 because it has 2 valence electrons
Elements from the group 2 of the periodic table form cations.
The group no. of Lithium is 1 and its period number is 2.
On the left of the periodic table, especially group 1 and group 2 elements.
Nitrogen is in group 15 on the periodic table. Nitrogen is in group 15 (and period 2).
Beryllium has the lowest atomic mass in group 2 of the periodic table.
group 2
Calcium, Magnesium, and Radium are all in group two of the periodic table.
Elements from the group 2 of the periodic table form cations.
The group no. of Lithium is 1 and its period number is 2.
Group 2
Oxygen is in Period 2 , Group 16 ( VI A) of periodic table
Nitrogen is in group 15 on the periodic table. Nitrogen is in group 15 (and period 2).
On the left of the periodic table, especially group 1 and group 2 elements.
Strontium is an alkaline earth metal; group 2 and period 5 in the periodic table of Mendeleev.
Boron is located in Group 13 (formerly Group IIIA) and Period 2 of the periodic table. It has an atomic number of 5.
The periodic table lists the elements and not compounds. Butane, C4H10, is an organic molecule / compound and hence is not present on the periodic table. The elements that make up butane (carbon and hydrogen) are present on the periodic table. Carbon: group 14, period 2 Hydrogen: group 1, period 1 Besides, group 2 elements are alkaline earth metals.
Group 4 elements on the periodic table contain no period 2 elements whatsoever.