U Sentence

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Useful Words

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Atomic Number 90, Th, Thorium : تہوریم : a soft silvery-white tetravalent radioactive metallic element; isotope 232 is used as a power source in nuclear reactors; occurs in thorite and in monazite sands.

Atomic Number 94, Plutonium, Pu : ایک مصنوعی تابکار عنصر : a solid silvery grey radioactive transuranic element whose atoms can be split when bombarded with neutrons; found in minute quantities in uranium ores but is usually synthesized in nuclear reactors; 13 isotopes are known with the most important being plutonium 239.

A-Bomb, Atom Bomb, Atomic Bomb, Fission Bomb, Plutonium Bomb : جوہری بم : a nuclear weapon in which enormous energy is released by nuclear fission (splitting the nuclei of a heavy element like uranium 235 or plutonium 239).

Atomic Number 80, Hg, Hydrargyrum, Mercury, Quicksilver : پارہ : a heavy silvery toxic univalent and bivalent metallic element; the only metal that is liquid at ordinary temperatures.

Atomic Number 88, Ra, Radium : ایک تابکار مادہ : an intensely radioactive metallic element that occurs in minute amounts in uranium ores.

Atomic Number 37, Rb, Rubidium : چاندی جیسا ایک دھاتی عنصر : a soft silvery metallic element of the alkali metal group; burns in air and reacts violently in water; occurs in carnallite and lepidolite and pollucite.

Atomic Number 11, Na, Sodium : سوڈیم : a silvery soft waxy metallic element of the alkali metal group; occurs abundantly in natural compounds (especially in salt water); burns with a yellow flame and reacts violently in water; occurs in sea water and in the mineral halite (rock salt).

High-Level Radioactive Waste : اعلی سطحی تابکار فضلہ : radioactive waste that left in a nuclear reactor after the nuclear fuel has been consumed.

Atomic Number 78, Platinum, Pt : ایک بھاری دھاتی عنصر : a heavy precious metallic element; grey-white and resistant to corroding; occurs in some nickel and copper ores and is also found native in some deposits.

Atomic Number 38, Sr, Strontium : ایک ہلکا زرد قلزی ارضی کیمیا : a soft silver-white or yellowish metallic element of the alkali metal group; turns yellow in air; occurs in celestite and strontianite.

Ag, Atomic Number 47, Silver : چاندی : a soft white precious univalent metallic element having the highest electrical and thermal conductivity of any metal; occurs in argentite and in free form; used in coins and jewelry and tableware and photography.

Atomic Number 29, Copper, Cu : پیتل : a ductile malleable reddish-brown corrosion-resistant diamagnetic metallic element; occurs in various minerals but is the only metal that occurs abundantly in large masses; used as an electrical and thermal conductor. "This is a copper wire".

Atomic Number 28, Ni, Nickel : نقلی چاندی : a hard malleable ductile silvery metallic element that is resistant to corrosion; used in alloys; occurs in pentlandite and smaltite and garnierite and millerite.

Atomic Number 81, Thallium, Tl : ایک کمیاب دھاتی عنصر : a soft grey malleable metallic element that resembles tin but discolors on exposure to air; it is highly toxic and is used in rodent and insect poisons; occurs in zinc blende and some iron ores.

Atomic Number 50, Sn, Tin : رانگ : a silvery malleable metallic element that resists corrosion; used in many alloys and to coat other metals to prevent corrosion; obtained chiefly from cassiterite where it occurs as tin oxide.

Atomic Number 12, Magnesium, Mg : میگنیشیم : a light silver-white ductile bivalent metallic element; in pure form it burns with brilliant white flame; occurs naturally only in combination (as in magnesite and dolomite and carnallite and spinel and olivine). "Magnesium is a mineral which is found in water and some foods good for health".

Abundance : ایٹم کا تناسب : (physics) the ratio of the number of atoms of a specific isotope of an element to the total number of isotopes present.

Ac, Actinium, Atomic Number 89 : ایٹمی نمبر : a radioactive element of the actinide series; found in uranium ores.

Atomic Pile, Atomic Reactor, Chain Reactor, Pile : ایٹمی ری ایکٹر : a nuclear reactor that uses controlled nuclear fission to generate energy. "Atomic reactor in Pakistan".

Fallout, Radioactive Dust : ایٹمی دھماکے سے فضا میں پھیل جانے والا دہواں : the radioactive particles that settle to the ground after a nuclear explosion.

Atomic Number 26, Fe, Iron : لوہے کی کیمیائی علامت : a heavy ductile magnetic metallic element; is silver-white in pure form but readily rusts; used in construction and tools and armament; plays a role in the transport of oxygen by the blood. "Allah has sent down iron which has great power to fight".

Atomic Number 34, Se, Selenium : ایک غیر دھاتی عنصر : a toxic nonmetallic element related to sulfur and tellurium; occurs in several allotropic forms; a stable grey metallike allotrope conducts electricity better in the light than in the dark and is used in photocells; occurs in sulfide ores (as pyrite).

Atomic Number 27, Co, Cobalt : کوبالٹ : a hard ferromagnetic silver-white bivalent or trivalent metallic element; a trace element in plant and animal nutrition.

Atomic Number 20, Ca, Calcium : چونا : a white metallic element that burns with a brilliant light; the fifth most abundant element in the earth`s crust; an important component of most plants and animals. "Calcium making factory".

Atomic Number 19, K, Potassium : پوٹاشیم : a light soft silver-white metallic element of the alkali metal group; oxidizes rapidly in air and reacts violently with water; is abundant in nature in combined forms occurring in sea water and in carnallite and kainite and sylvite.

Atomic Number 65, Tb, Terbium : دھات : a metallic element of the rare earth group; used in lasers; occurs in apatite and monazite and xenotime and ytterbite.

Atomic Number 67, Ho, Holmium : ہلومیم کیمائی مادہ : a trivalent metallic element of the rare earth group; occurs together with yttrium; forms highly magnetic compounds.

Atomic Number 60, Nd, Neodymium : کیمیا نیوڈیمیئم؛ ایک نادر سہ گرفتہ ارضی؛ دھاتی عنصر : a yellow trivalent metallic element of the rare earth group; occurs in monazite and bastnasite in association with cerium and lanthanum and praseodymium.

Atomic Number 86, Radon, Rn : ایک تابکار بھاری گیسی عنصر : a radioactive gaseous element formed by the disintegration of radium; the heaviest of the inert gasses; occurs naturally (especially in areas over granite) and is considered a hazard to health.

Atomic Number 79, Au, Gold : جس کو زنگ نہیں لگتا : a soft yellow malleable ductile (trivalent and univalent) metallic element; occurs mainly as nuggets in rocks and alluvial deposits; does not react with most chemicals but is attacked by chlorine and aqua regia. "Gold price getting high in 2011".

Atomic Number 76, Os, Osmium : بہت سخت پلاٹینم کا گروہ : a hard brittle blue-grey or blue-black metallic element that is one of the platinum metals; the heaviest metal known.