Unit 2 Chem Test

Waves are defined by their _____ and ______.

As ______ increases, _____ decreases

_____ _____ recognized that electrons exist in definite energy states - called quantum states

_______ __ _____ theorized that since energy was proportional frequency (Planck’s Law) AND also proportional mass (Einstein’s E=mc2), frequency must also be proportional to mass.

_______ ______ recognizes that if you know the motion (momentum) of an object, it is impossible to know its position and vice versa

-If something is moving its position is changing and if you freeze an object, you change its motion

_____ ________ developed a probability equation to describe the position of an electron by treating it like a wave

The Wave Equation also predicts energy state – called “______” where electrons can be located

-No two electrons in the same atom can have the same set of four quantum numbers.

-Therefore, no two electrons in the same atom can have the exact same energy.

Waves are defined by their _____ and ______.

The orbitals are usually referred to by the letters s, p, d, f

s orbitals are ______ in shape and grow larger with increasing energy level

-Can “hold” two electrons

-s orbitals correspond to columns 1 & 2 on the periodic table

• spherical

• cubical

• teardrop shaped

• flat