Group 2 is called Alkaline Earth metals
Nitrogen is in group 15 on the periodic table. Nitrogen is in group 15 (and period 2).
The alkaline Earth metals or beryllium family.
Oxygen's family, the chalcogens, are most likely to become -2 ions.
No , Iodine is placed in period-5 of the periodic table.
Helium is number two on the periodic table indicating that it has 2 protons.
The second family is called Alkaline Earth Metals. They have 2 valence electrons.
Calcium
Lithium on the periodic table is found in the first group or family and the second period. The first family is often called the alkali metal family.
Nitrogen is in group 15 on the periodic table. Nitrogen is in group 15 (and period 2).
The vertical columns of the periodic table are called groups. The horizontal rows of the periodic table are called periods. The number of electron shells an atom has corresponds to the number period of the periodic table it is located in. The oxidation number or number of valence electrons an atom is depicted by the group it is in. For example: Calcium (Ca) has an oxidation number of +2 and has 2 valence electrons( outermost electrons) which means it belongs to group 2 of the periodic table called the "alkali earth metals".
Alkali and alkaline earth family are metals. They are in group-1 and 2. They have metallic properties.The 2nd family of the periodic table is completely made up of metals. They are called alkaline earth metals. Be,Mg,Ca,Sr,Ba are examples.
The alkaline Earth metals or beryllium family.
group 16, oxygen family
Oxygen's family, the chalcogens, are most likely to become -2 ions.
Alkali Earth metals.
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the number of helium in the periodic table is 2.