The elements in the second period are lithium, beryllium, boron, carbon, nitrogen, oxygen, fluorine, and neon.
it is because transition metals falls under differen group in the period table. Alkali elements falls in frirst group alkali earth metal falls in second group and the followed by groups are transition elemets
Oxygen is in the second period.
Far right.
Lithium is in the second period and the first group in the Periodic Table of Mendeleev.
No. Magnesium is in the second period and potassium is in the third.
Atom number 20 is Calcium (period IV, group 2)
chemically combined elemets
it is because transition metals falls under differen group in the period table. Alkali elements falls in frirst group alkali earth metal falls in second group and the followed by groups are transition elemets
Carbon
Elemets of the skin
Two--mercury and bromine
it contains only oxygen
Because of the lattice mobile
combined form
Gold is an element so it only contains the element, gold.
i know when my second last period was when am i due?
the second intermediate period end in 1540 BC