Chemistry

Question 1

Niels Bohr

Answer 1

developed the Bohr
Model of the Atom

Question 2

Ground State Electrons

Answer 2

electrons in their
lowest energy state

Question 3

Excited State Electrons

Answer 3

electrons with
energy added that changes energy levels

Question 4

Principal Quantum Number

Answer 4

energy level of the electron (n)

Question 5

Negative Charges Repel

Answer 5

electrons don’t travel in predictable paths

Question 6

Orbital

Answer 6

a three dimensional space where an electron is most likely found

Question 7

Angular Momentum Quantum Number

Answer 7

orbital shape (L)

Question 8

subshell

Answer 8

divides energy levels up

Question 9

Magnetic Quantum Number

Answer 9

determines the number of orbitals and their orientation in a subshell (mL)

Question 10

Electron Spin Quantum Number

Answer 10

determines the direction of the electron in the orbital (ms)

Question 11

Pauli Exclusion Principle

Answer 11

orbitals have a maximum of 2
electrons but they must have opposite spins`

Question 12

Aufbau principle

Answer 12

electrons fill the lowest energy levels first

Question 13

Hund’s Rule

Answer 13

electrons fill the orbitals singly before doubling up