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.
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.
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.