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A gas filled tube which discharges electriaclly when ionizing radiation passes through it.

Latest Articles

  • Interesting facts about metals

    Metals have been used by people since ancient times. All the time the process of obtaining them was improved, useful alloys of various metals appeared. Let’s look at interesting facts about metals.

  • Varieties of garnet minerals

    The most famous type of garnet stone is pyrope (flaming). This is the "oldest of garnets", with a dense red color, similar to the grain of an edible garnet. Pyrope has a variety called rhodolite - a stone of dense pink or pink-purple color, which sometimes has the alexandrite effect and is used in...

  • Why do copper products change color, and what is the name of the process?

    Probably, every person wants to know, why over time the copper turns green and becomes bloomed. This is easy to explain: that film is called patina.

  • Chemistry of the sky

    Chemistry can teach us about the composition of celestial bodies and determine their age.

  • Gas of rotten eggs

    If you happen to break a rotten egg, then you know the smell of hydrogen sulfide, because the stench of the spoiled egg depends on of its presence in rotting protein substances.



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Curie (Ci)

The basic unit used to describe the intensity of radioactivity in a sample of material. One curie equals 37 billion disintegrations per second or approximately the amount of radioactivty given off by 1 gram of radium.

Band of Stability

Band containing nonradioactive nuclides in a plot of number of neutrons versus atomic number.

Nodal Plane

A region in which the probability of finding an electron is zero.

 

Adhesive Forces

Forces of attraction between a liquid and another surface.

Double Salt

Solid consisting of two co-crystallized salts.

 

Dynamic Equilibrium

An equilibrium in which processes occur continuously, with no net change. When two (or more) processes occur at the same rate so that no net change occurs.

Radiation

High energy particles or rays emitted during the nuclear decay processes.

Hydrogenation

The reaction in which hydrogen adds across a double or triple bond.

Cathode

Electrode at which reduction occurs in a cathode ray tube, the negative electrode.

Dissociation

In aqueous solution, the process in which a solid ionic compound separates into its ions.