The quantum mechanical model of the atom (de Broglie, Schrödinger)
introduced the idea of the wave-particle dualism of the electron and applied laws of wave mechanics to atoms. In this model, each electron in
an atom is characterized by
d. A period and a group in the periodic table
a. Specific charge
c. Four quantum numbers
e. a-d are all correct
b. Atomic number

the formula mass of a molecule or a compound is the sum of the atomic weights of the atoms in its empirical formula

(that's what i know about formula mass)

answer: mole of the gas

answer: mole of the gasexplanation:

the answer is yes

it has kinetic energy

reason

an object has kinetic energy when you stop the force carrying it, the object will stay in motion.

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