Chemistry

What are the charges of the up, charmed, top quarks?

In the definition of standard meter, a meter is 1,650,763.73 wavelengths of the red-orange line in a vacuum, for the spectrum of _______ atom.

In 1932, the American Physicist ___________ , discovered the anti-electron, or positron, predicted in 1928 by Dirac

What is the second most abundant element in the atmosphere?

What principle states about the fundamental limitation that, for a particle as small as the electron, one cannot know exactly where it is and at the same time know its energy or how it is moving?

What principle states that the electrons fill the orbitals, one at a time, starting with the lowest energy orbital then to the one with higher energy?

What describes how the electrons are distributed among the orbitals?

The elements of groups IA, IIA, IIIA, IVA, V,.. are called main group of elements or ______

For the representative elements, the number of valence electrons is the same as the ________

For transition elements, the number of valence electrons is the same as

The size of the atom is dependent on which of the ff:

Who first predicted the Bose-Einstein Condensate (BEC) in 1924

The ionization energy is _________ to the atomic size of atom

What refers to the measure of the atom's tendency to attract an additional electron to form anions?

Who first identified plasma in 1879?

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?