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Compounds that contain at least one atom (other than H) that shares fewer than eight electrons.

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Magnetic Quantum Number (mc)

Quantum mechanical solution to a wave equation that designates the particular orbital within a given set (s, p, d, f ) in which a electron resides.

Cathode Ray Tube

Closed glass tube containing a gas under low pressure, with electrodes near the ends and a luminescent screen at the end near the positive electrode, produces cathode rays when high voltage is applied.

Deuterium

An isotope of hydrogen whose atoms are twice as massive as ordinary hydrogen,deuterion atoms contain both a proton and a neutron in the nucleus.

Disproportionation Reactions

Redox reactions in which the oxidizing agent and the reducing agent are the same species.

Neutron

A neutral subatomic particle having a mass of 1.0087 amu.

Pairing Energy

Energy required to pair two electrons in the same orbital.

Flash Point

The temperature at which a liquid will yield enough flamable vapour to ignite. There are various recognized industrial testing methods, therefore the method used must be stated.

Semiconductor

A substance that does not conduct electricity at low temperatures but does so at higher temperatures.

Radical

An atom or group of atoms that contains one or more unpaired electrons (usually very reactive species)

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.