Actinium Synonyms

Actinium Definitions

Useful Words

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Actinide Series : تابکار مادے , Atomic Number 88 : ایک تابکار مادہ , Atomic Number 94 : ایک مصنوعی تابکار عنصر , Actinide : تابکار مادہ , Lanthanide : کوئی ایک نادر خاکی دھات , Atomic Number : جوہری عدد , Atomic Number 108 : ہیسیوم تابکاری مواد , Abundance : ایٹم کا تناسب , 0 : صفر , Atomic Number 78 : ایک بھاری دھاتی عنصر , A-Bomb : جوہری بم , Atomic Number 81 : ایک کمیاب دھاتی عنصر , Atomic Number 52 : سونے چاندی اور دیگر دھاتوں میں پایا جانے والا ایک دھاتی عنصر , Ultimate : آخری , Atomic Number 34 : ایک غیر دھاتی عنصر , Atomic Mass : جوہری وزن , Atomic Number 90 : تہوریم , Atomic Number 86 : ایک تابکار بھاری گیسی عنصر , Atomic Number 101 : ایک مصنوعی تابکار عنصر , Atomic Number 92 : ایک بھاری تابکار دھاتی عنصر , Atom : جوہر , Atomic Number 27 : کوبالٹ , Atomic Number 1 : ہلکی گیس جو آکسیجن کے ساتھ مل کر پانی بناتی ہے , Atomic Number 20 : چونا , 99 : نینانوے , 44 : چوالیس , 73 : تہتر , Atomic Number 14 : ایک دھاتی عنصر , Mine : کان , 55 : پچپن , 500 : پانچ سو

Useful Words Definitions

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Actinide Series: (chemistry) a series of 15 radioactive elements with increasing atomic numbers from actinium to lawrencium.

Atomic Number 88: an intensely radioactive metallic element that occurs in minute amounts in uranium ores.

Atomic Number 94: 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.

Actinide: any of a series of radioactive elements with atomic numbers 89 through 103.

Lanthanide: any element of the lanthanide series (atomic numbers 57 through 71).

Atomic Number: the order of an element in Mendeleyev's table of the elements; equal to the number of protons in the nucleus or electrons in the neutral state of an atom of an element.

Atomic Number 108: a radioactive transuranic element.

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

0: a mathematical element that when added to another number yields the same number.

Atomic Number 78: 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.

A-Bomb: 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 81: 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 52: a brittle silver-white metalloid element that is related to selenium and sulfur; it is used in alloys and as a semiconductor; occurs mainly as tellurides in ores of copper and nickel and silver and gold.

Ultimate: being the last or concluding element of a series.

Atomic Number 34: 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 Mass: (chemistry) the mass of an atom of a chemical element expressed in atomic mass units.

Atomic Number 90: 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 86: 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 101: a radioactive transuranic element synthesized by bombarding einsteinium with alpha particles (Md is the current symbol for mendelevium but Mv was formerly the symbol).

Atomic Number 92: a heavy toxic silvery-white radioactive metallic element; occurs in many isotopes; used for nuclear fuels and nuclear weapons.

Atom: (physics and chemistry) the smallest component of an element having the chemical properties of the element.

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

Atomic Number 1: a nonmetallic univalent element that is normally a colorless and odorless highly flammable diatomic gas; the simplest and lightest and most abundant element in the universe.

Atomic Number 20: 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.

99: The number 99 is a natural number that comes after 98 and before 100. It is composed of two nines, making it a double-digit number.

44: The number 44 is a natural number that comes after 43 and before 45. It is composed of two fours, making it a two-digit number.

73: 73 is a natural number following 72 and preceding 74. It is an odd number and is also a prime number, meaning it is only divisible by 1 and itself.

Atomic Number 14: a tetravalent nonmetallic element; next to oxygen it is the most abundant element in the earth's crust; occurs in clay and feldspar and granite and quartz and sand; used as a semiconductor in transistors.

Mine: excavation in the earth from which ores and minerals are extracted.

55: a natural number following 54 and preceding 56. It is an odd number and can be expressed as the sum of two consecutive triangular numbers: 10 and 45.

500: 500 is a natural number following 499 and preceding 501. It is an even number and can be expressed as the product of 2 and 5 raised to the power of 3, i.e., 2 x (5^3) = 500.