Chromium- All about Chromium and its Atomic Characteristics

Chromium Cr Atomic Number 24 Atomic Mass 51.9961 Atomic radius 0.117 Ionization energy 652 Electronic config 2,8,13,1 Principal Valency +3 and +6 Density g/cm3 7.14 Melting point oC 1907 Boiling point oC 2671 Type of Element Metal Electronegativity 1.6 Appearance Gray solid Block d-block Period 4 Group 6 No More...

by gktoday | Published 11 months ago
By gktoday On Tuesday, February 14th, 2012

Spectrum and Difference between 2-G and 3-G

Spectrum is radio frequencies used to transmit voice, video and data. 2-G and 3-G are second generation and third generation spectrum, respectively. The fourth generation is being tested. 3-G facilitates high-end More...

By gktoday On Tuesday, May 11th, 2010

Nano and Nanotechnology

Nano is actually a SI prefix denoting 0.000 000 001, and for instance one nano-meter means one billionth of a meter. Obviously nano is referring to the fields dealing with such small scales (roughly 1–100 nm). More...

By gktoday On Wednesday, January 21st, 2009


SCIENCE TERMINOLOGY General Knowledge Home Page Science is knowledge, often as opposed to intuition, belief, etc. It is, in fact, systematized knowledge derived from observation, study and experimentation carried More...