Wednesday, June 25, 2014

ATOM

Atom

For other uses, see Atom (disambiguation).
Helium atom
Helium atom ground state.
An illustration of the helium atom, depicting the nucleus(pink) and the electron cloud distribution (black). The nucleus (upper right) in helium-4 is in reality spherically symmetric and closely resembles the electron cloud, although for more complicated nuclei this is not always the case. The black bar is one angstrom (10−10 m or100 pm).
Classification
Smallest recognized division of a chemical element
Properties
Mass range:1.67×10−27 to 4.52×10−25 kg
Electric charge:zero (neutral), or ion charge
Diameterrange:62 pm (He) to 520 pm (Cs) (data page)
Components:Electrons and a compact nucleusof protons and neutrons
The atom is a basic unit of matter that consists of a dense centralnucleus surrounded by a cloud of negatively charged electrons. Theatomic nucleus contains a mix of positively charged protons and electrically neutral neutrons (except in the case of hydrogen-1, which is the only stable nuclide with no neutrons). The electrons of an atom are bound to the nucleus by the electromagnetic force. Likewise, a group of atoms can remain bound to each other by chemical bonds based on the same force, forming a molecule. An atom containing an equal number of protons and electrons is electrically neutral, otherwise it is positively or negatively charged and is known as an ion. An atom is classifiedaccording to the number of protons and neutrons in its nucleus: thenumber of protons determines the chemical element, and the number of neutrons determines the isotope of the element.[1]

Tuesday, June 24, 2014

MUHAMMAD (SAW) , THE LAST PROPHET

Muhammad

  (Redirected from Muhammad (SAW))
This article is about the Islamic prophet. For other people named Muhammad, see Muhammad (name). For other uses, see Muhammad (disambiguation).
Islamic prophet
Muhammad
تخطيط إسم محمد.png
Common calligraphic representation of
Muhammad's name
BornMuḥammad ibn `Abd Allāh
c. 570 CE
MeccaMakkahArabia
(present-day Saudi Arabia)
Died8 June 632 CE (aged 62 or 63)
MedinaHejazArabia
(present-day Saudi Arabia)
Resting place
Tomb under the Green Dome of
Al-Masjid an-Nabawi at Medina,
Hejaz, present-day Saudi Arabia
Other names
EthnicityArab
Years active
583-609 CE as merchant
609-632 CE as religious leader
Employer
Notable work(s)Sunnah
Predecessor(as prophet:)  Isa ibn Maryam (Jesus)
Successor
Abu Bakr(as Sunni Ummah leader)
Ali(as Shia Imam)
Mahdi(as "Redeemer of Islam")
Opponent(s)Polytheists   (609–630 CE)
ReligionIslam
Spouse(s)
WifeMarried
Khadijah bint Khuwaylid595–619
Sawda bint Zamʿa619–632
Aisha bint Abi Bakr619–632
Hafsa bint Umar624–632
Zaynab bint Khuzayma625–627
Hind bint Abi Umayya629–632
Zaynab bint Jahsh627–632
Juwayriya bint al-Harith628–632
Ramlah bint Abi Sufyan628–632
Rayhana bint Zayd629–631
Safiyya bint Huyayy629–632
Maymuna bint al-Harith630–632
Maria al-Qibtiyya630–632
Children
Parents
RelativesAhl al-Bayt  ("Family of the House")
Part of a series on
Muhammad
Muhammad
Abū al-Qāsim Muḥammad ibn ʿAbd Allāh ibn ʿAbd al-Muṭṭalib ibn Hāshim (Arabicابو القاسم محمد ابن عبد الله ابن عبد المطلب ابن هاشم‎; c.570 – c. 8 June 632),[1] also transliterated as Muhammad (محمد), was a man from Mecca who unified Arabia into a single religious polity underIslam. Believed by Muslims and Bahá'ís to be a messenger and prophetof God, Muhammad is almost universally[n 1] considered by Muslims as the last prophet sent by God to mankind.[2][n 2] While non-Muslims regard Muhammad as the founder of Islam,[3] Muslims consider him to have restored the unaltered original monotheistic faith of AdamNoah,AbrahamMosesJesus, and other prophets.[4][5][6][7]
Born in about 570 CE in the Arabian city of Mecca,[8][9] Muhammad was orphaned at an early age; he was raised under the care of his paternal uncle Abu Talib. After his childhood Muhammad primarily worked as a merchant.[10] Occasionally he would retreat to a cave in the mountains for several nights of seclusion and prayer; later, at age 40, he reported at this spot,[8][11] that he was visited by Gabriel and received his first revelation from God. Three years after this event Muhammad startedpreaching these revelations publicly, proclaiming that "God is One", that complete "surrender" to Him (lit. islām) is the only way (dīn)[n 3]acceptable to God, and that he was a prophet and messenger of God, in the same vein as other Islamic prophets.[12][13][14]
Muhammad gained few followers early on, and met hostility from some Meccan tribes. To escape persecution, Muhammad sent some of his followers to Abyssinia before he and his followers in Mecca migrated toMedina (then known as Yathrib) in the year 622. This event, the Hijra, marks the beginning of the Islamic calendar, also known as the Hijri Calendar. In Medina, Muhammad united the tribes under theConstitution of Medina. After eight years of fighting with the Meccan tribes, Muhammad gathered an army of 10,000 Muslim converts andmarched on the city of Mecca. The attack went largely uncontested and Muhammad took over the city with little bloodshed. He destroyed the pagan idols in the city[15] and sent his followers out to destroy all remaining pagan temples in Eastern Arabia.[16][17] In 632, a few months after returning to Medina from The Farewell Pilgrimage, Muhammad fell ill and died. Before his death, most of the Arabian Peninsula hadconverted to Islam, and he had united Arabia into a single Muslim religious polity.[18][19]
The revelations (each known as Ayah, lit. "Sign [of God]") which Muhammad reported receiving until his death form the verses of theQuran, regarded by Muslims as the "Word of God" and around which the religion is based. Besides the Quran, Muhammad's teachings and practices (sunnah), found in the Hadith and sira literature, are also upheld by Muslims and used as sources of Islamic law. Muslims discuss Muhammad and other prophets of Islam with reverence, adding the phrase peace be upon him whenever their names are mentioned.[20]While conceptions of Muhammad in medieval Christendom and otherpremodern contexts were largely negative, appraisals in modern historyhave been far more favorable.[14][21]

When you look at various woman