Element 1 of Periodic table is
Hydrogen with atomic number 1,
atomic weight 1.00794.
Hydrogen, symbol H, has a
Simple Hexagonal structure and Colorless color.
Hydrogen is a other nonmetal element.
Trivial name of Hydrogen is alkali metals*.
Know everything about Hydrogen Facts, Physical Properties, Chemical
Properties, Electronic configuration, Atomic and Crystal Structure.
Hydrogen is a chemical element with chemical symbol H and atomic number 1. With an atomic weight of 1.00794 u, hydrogen is the lightest element on the periodic table. Its monatomic form (H) is the most abundant chemical substance in the Universe, constituting roughly 75% of all baryonic mass.
Read key information and facts about element Hydrogen
Explore our interactive periodic table
Periodic table is arranged by atomic number, number of protons in the nucleus which is same as number of
The atomic number increases from left to right. Periodic table starts at top left ( Atomic number 1) and
ends at bottom right (atomic number 118). Therefore you can directly look for atomic number
1 to find Hydrogen on periodic table.
Another way to read periodic table and locate an element is by using group number (column)
and period number (row). To locate Hydrogen on periodic
table look for cross section of group 1 and period
1 in the modern periodic table.
Interactive Periodic Table to Understand
and Learn Cool Trends
The element Hydrogen was discovered by Henry Cavendish in year
1766 in United Kingdom
derived its name from the Greek elements hydro- and -gen meaning 'water-forming'
The table below shows the abundance of Hydrogen in Universe, Sun, Meteorites,
Earth's Crust, Oceans and Human Body.
The solid state structure of Hydrogen is Simple Hexagonal.
The Crystal structure can be described in terms of its unit Cell. The unit Cells repeats itself in
dimensional space to form the structure.
The unit cell is represented in terms of its lattice parameters, which are the lengths of the cell
Lattice Constants (a, b and c)
and the angles between them Lattice Angles (alpha, beta and gamma).
The positions of the atoms inside the unit cell are described by the set of atomic positions (
xi, yi, zi) measured from a reference lattice point.
The symmetry properties of the crystal are described by the concept of space groups. All possible
symmetric arrangements of particles in three-dimensional space are described by the 230 space groups
(219 distinct types, or 230 if chiral copies are considered distinct.
Hydrogen atoms have 1 electrons and
the electronic shell structure is  with Atomic Term Symbol (Quantum Numbers) 2S1/2.
Shell Structure of Hydrogen - Electrons per energy
The ground state electronic configuration of Neutral Hydrogen atom is
The portion of Hydrogen configuration that is equivalent to the noble gas of
the preceding period, is abbreviated as 1s1]. For atoms with many electrons, this
notation can become lengthy and so an abbreviated notation is used.This is important as it is
the Valence electrons 1s1, electrons in
the outermost shell that determine the chemical properties of the element.
Complete ground state electronic configuration for the Hydrogen atom, Unabbreviated electronic configuration
Hydrogen atomic radius is 53 pm, while it's covalent radius is 37 pm.
The electron affinity of Hydrogen is 72.8 kJ/mol
Refer to table below for Ionization energies of Hydrogen
Refer to below table for Hydrogen Physical Properties
Hydrogen is N/A of electricity. Refer to
below for the Electrical properties of Hydrogen
Refer to table below for Thermal properties of Hydrogen
Isotopes of rhodium. Naturally occurring Hydrogen has
2 stable isotope -
List of unique identifiers to search the element in various chemical registry databases