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Refers to chemical similarities in the Periodic Table of elements of Period 2 to elements of Period 3 one group to the right, especially evident toward the left of the periodic table.

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Cell Potential

Potential difference, Ecell, between oxidation and reduction half-cells under nonstandard conditions.

 

Allotropes

Different forms of the same element in the same physical state.

Endothermicity

The absorption of heat by a system as the process occurs.

The most expensive metal in the world

Do you think the most expensive metal is gold? No! On earth there are more valuable metals. But we need to divide the value of metals that occur in nature, and metals - isotopes, which are obtained in special laboratories. Let’s look at natural metals first.

Liquid Aerosol

Colloidal suspension of liquid in gas.

Combination Reaction

Reaction in which two substances (elements or compounds) combine to form one compound.

Associated Ions

Short-lived species formed by the collision of dissolved ions of opposite charges.

Fast Neutron

A neutron ejected at high kinetic energy in a nuclear reaction.

Polar Bond

Covalent bond in which there is an unsymmetrical distribution of electron density.

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