The elements in the second period are lithium, beryllium, boron, carbon, nitrogen, oxygen, fluorine, and neon.
Oxygen's period on the periodic table is the second period.
Neon
Lithium is in the second period and the first group in the Periodic Table of Mendeleev.
Fluorine is in the halogen family and in the second period of the periodic table.
The allowed orbital types for the second period of the periodic table are s and p orbitals. This means that elements in the second period can have a maximum of 2 electrons in an s orbital and 6 electrons in p orbitals.
Atom number 20 is Calcium (period IV, group 2)
chemically combined elemets
Carbon
Oxygen's period on the periodic table is the second period.
Elemets of the skin
it contains only oxygen
Two--mercury and bromine
i know when my second last period was when am i due?
the second intermediate period end in 1540 BC
It's very unlikely you will get pregnant on the second say after your period starts.
combined form
Gold is an element so it only contains the element, gold.