Periodic Table (Elements to Know)

Specific elements my Chem professor wants me to have memorized

H

Hydrogen, Mass #: 1.008, atomic #: 1, meaning it has 1 proton and 1 electron. No neutrons.

He

Helium, Mass #: 4.003, Atomic #: 2, meaning it has 2 protons, 2 neutrons, and 2 electrons

Li

Lithium, Mass #6.941, Atomic #: 3, meaning it has 3 protons, 4 neutrons, and 3 electrons

Be

Beryllium, Mass #: 9.012, Atomic #: 4, meaning it has 4 protons, 5 neutrons, and 4 electrons

B

Boron, Mass #: 10.81, Atomic #: 5, meaning it has 5 protons, 5 neutrons, and 5 electrons

C

Carbon, Mass #12.01, Atomic #: 6, meaning it has 6 protons, 6 neutrons, and 6 electrons

N

Nitrogen, Mass #: 14.01, Atomic #: 7, meaning it has 7 protons, 7 neutrons, and 7 electrons

O

Oxygen, Mass #: 16.00, Atomic #: 8, meaning it has 8 protons, 8 neutrons, and 8 electrons

F

Fluorine, Mass #: 19.00, Atomic #: 9, meaning it has 9 protons, 10 neutrons, 9 electrons

Ne

Neon, Mass #: 20.18, Atomic #: 10, meaning it has 10 protons, 10 neutrons, 10 electrons

Na

Sodium, Mass #: 22.99, Atomic #: 11, meaning it has 11 protons, 12 neutrons, and 11 electrons

Mg

Magnesium, Mass #: 24.31, Atomic #12: 12 protons, 12 neutrons, and 12 electrons

Al

Aluminum, Mass #: 26.98, Atomic #: 13, meaning there are 13 protons, 14 neutrons, and 13 electrons

Si

Silicon, Mass #: 28.09, Atomic #: 14, meaning there are 14 protons, 14 neutrons, and 14 electrons

P

Phosphorous, Mass #: 30.97, Atomic #: 15, meaning there are 15 protons, 16 neutrons, and 15 electrons

S

Sulfur, Mass #: 32.07, Atomic #: 16, meaning there are 16 protons, 16 neutrons, and 16 electrons

Cl

Chlorine, Mass#: 35.45, Atomic #: 17 meaning it has 17 protons, 18 neutrons, and 17 electrons

Ar

Argon, Mass#: 39.95, Atomic #: 18, meaning it has 18 protons, 22 neutrons, 18 electrons

K

Potassium, Mass #: 39.10, Atomic #: 19, meaning it has 19 protons, 20 neutrons, and 19 electrons

Ca

Calcium, Mass #: 40.08, Atomic #: 20, meaning it has 20 protons, 20 neutrons, and 20 electrons

Cr

Chromium, Mass #: 52.00, Atomic #: 24, meaning it has 24 protons, 28 neutrons, and 24 electrons

Mn

Manganese, Mass #: 54.94, Atomic #: 25, meaning it has 25 protons, 30 neutrons, and 25 electrons

Fe

Iron, Mass #: 55.85, Atomic #: 26, meaning it has 26 protons, 30 neutrons, and 26 electrons

Co

Cobalt, Mass #: 58.93, Atomic #: 27, meaning it has 27 protons,32 neutrons, and 27 electrons

Ni

Nickel, Mass #: 54.94, Atomic #: 28, meaning it has 28 protons, 27 neutrons, and 28 electrons

Cu

Copper, Mass #: 63.55, Atomic #: 29, meaning it has 29 protons, 35 neutrons, 29 electrons

Zn

Zinc, Mass #: 65.39, Atomic #: 30, meaning it has 30 protons, 35 neutrons, and 30 electrons

Rb

Rubidium, Mass #: 85.47, Atomic #: 37, meaning it has 37 protons, 48 neutrons, and 37 electrons

Sr

Strontium, Mass #: 87.62, Atomic #: 38, meaning there are 38 protons, 50 neutrons, and 38 electrons

Ag

Silver, Mass #: 107.87, Atomic #: 47, meaning there are 47 protons, 61 neutrons, and 47 electrons

Sn

Tin, Mass #: 118.71, Atomic #: 50, meaning there are 50 protons, 69 neutrons, and 50 electrons

I

Iodine, Mass #: 126.90, Atomic #: 53, meaning there are 53 protons, 74 electrons, and 53 electrons

Xe

Xenon, Mass #: 131.29, Atomic #: 54, meaning there are 54 protons, 77 neutrons, and 54 electrons

Cs

Cesium, Mass #: 132.91, Atomic #: 55, meaning there are 55 protons, 78 neutrons, and 55 electrons

Ba

Barium, Mass #: 137.33, Atomic #: 56, meaning there are 56 protons, 81 neutrons, and 56 electrons

Au

Gold, Mass #: 196.97, Atomic #: 79, meaning there are 79 protons, 118 neutrons, and 79 electrons

Hg

Mercury, Mass #: 200.59, Atomic #: 80, meaning there are 80 protons, 120 neutrons, and 80 electrons

Pb

Lead, Mass #: 207.2, Atomic #: 82, meaning there are 82 protons, 125 neutrons, and 82 electrons

U

Uranium, Mass #: 238.03, Atomic #: 92, meaning there are 92 protons, 146 neutrons, and 92 electrons