Chemistry

Who coined the term "plasma" in 1928

What is made of gas atoms that have been cooled to near absolute zero at which temperature the atoms slow down, combine and form a single entity known called a superatom?

The fifth state of matter, the BEC (Bose-Einstein Condensate) was first created in what year?

What is the high-energy, electrically charged gas produced by heating the gas until the electrons in the outer orbitals of the atoms separate, leaving the atoms with a positive charge?

What is the temp of water in solid state at 1atm?

Metals can be drawn into wires. This illustarate what property of metals?

Steel is the widely used construction material because of its high tensile strength. It is a combination of what elements?

What refers to the electrostatic attraction that holds together the oppositely charged ions, the cations and anions, in the solid compound?

What indicates the number of valence electrons in the atom represented by dots scaterred on four sides of the atomic symbol?

What is the distance bet the nuclei of two bonded atoms called?

The overall shape of a molecule is described by which two properties?

What is an angle made by the lines joining the nuclei of the atoms in the molecule?

"The best arrangement of a given number of shared and unshared electrons is the one that minimizes the repulsion among them". This is known as _______

"A covalent bond is formed by the overlap of atomic orbitals" This statement is the basic idea of which theory?

What refers to the ability of an atom in a molecule to attract shared electrons in a covalent bond?

What type of bond occurs when the difference in electronegativity is greater than or equal to 2.0?

What type of bond occurs when the difference in electronegativity is less than 1.5?

When can we say that a molecule is polar?

What is defined as the amount of substance that contains 6.\( 02 \\times \(10^{23}\) \) particles of that substance?

The dry air is composed of how many percent nitrogen