Fill in the Missing Spaces on the Table Below

Name ______

Periodic Table Practice

Fill in the missing spaces on the table below

Atomic Symbol / Name / Atomic Number / Mass Number
(round to the nearest whole number) / Protons / Neutrons / Electrons / Group Number / Family Name
He / Helium / 2 / 4 / 2 / 2 / 2 / 18 / Noble Gasses
C / Carbon / 6 / 12 / 6 / 6 / 6 / 14 / Carbon Family
N / Nitrogen / 7 / 14 / 7 / 7 / 7 / 15 / Nitrogen Family
O / Oxygen / 8 / 16 / 8 / 8 / 8 / 16 / Oxygen family
F / Fluorine / 9 / 19 / 9 / 10 / 9 / 17 / Halogens
Na / Sodium / 11 / 23 / 11 / 12 / 11 / 1 / Alkali Metals
Cr / Chromium / 24 / 52 / 24 / 28 / 24 / 6 / Transition metal
Al / Aluminum / 13 / 27 / 13 / 14 / 13 / 13 / Boron (Post-transition metal)
P / Phosphorous / 15 / 31 / 15 / 16 / 15 / 15 / Nitrogen Family
Ge / Germanium / 32 / 73 / 32 / 41 / 32 / 14 / Carbon Family
Cl / Chlorine / 17 / 35 / 17 / 18 / 17 / 17 / Halogen
K / Potassium / 19 / 39 / 19 / 20 / 19 / 1 / Alkali Metals
Ca / Calcium / 20 / 40 / 20 / 20 / 20 / 2 / Alkaline Earth Metals
Fe / Iron / 26 / 56 / 26 / 30 / 26 / 8 / Transition Metals
Cu / Copper / 29 / 64 / 29 / 35 / 29 / 11 / Transition Metals
Zn / Zinc / 30 / 65 / 30 / 35 / 30 / 12 / Transition Metals
Kr / Krypton / 36 / 84 / 36 / 48 / 36 / 18 / Noble Gasses
Ag / Silver / 47 / 108 / 47 / 61 / 47 / 11 / Transition Metals
Au / Gold / 79 / 197 / 79 / 118 / 79 / 11 / Transition Metals
Hg / Mercury / 80 / 201 / 80 / 121 / 80 / 12 / Transition Metals
Pb / Lead / 82 / 207 / 82 / 125 / 82 / 14 / Carbon Family

Question: What do you notice about the Atomic number, protons, and electrons? They are all the same number.