Respuesta :
Hydrogen - H - 1 - 1
Helium - He - 2 - 4
Lithium - Li - 3 - 7
Berelium - Be - 4 - 9
Boron - B - 5 - 11
Carbon - C - 6 - 12
Nitrogen - N - 7 - 14
Oxygen - O - 8 - 16
Fluorine - F - 9 - 19
Neon - Ne - 10 - 21
Sodium - Na - 11 - 23
Magnesium - Mg - 12 - 24
Aluminium - Al - 13 - 27
Silicon - Si - 14 - 28
Phosphorous - P - 15 - 31
Sulfur - S - 16 - 32
Chlorine - Cl - 17 - 35.5
Argon - Ag - 18 - 36
Potassium - K - 19 - 39
Calcium - Ca - 20 - 40
Scandium - Sc - 21 - 45
Vanadium - Vn - 22 - 48
Titanium - Ti - 23 - 51
Vanadium - Vn - 24 - 52
Manganese - Mn - 25 - 55
Iron - Fe - 26 - 56
Cobalt - Co - 27 - 59
Nickle - Ni - 28 - 59
Copper - Cu - 29 - 64
Zinc - Zn - 30 - 65
Helium - He - 2 - 4
Lithium - Li - 3 - 7
Berelium - Be - 4 - 9
Boron - B - 5 - 11
Carbon - C - 6 - 12
Nitrogen - N - 7 - 14
Oxygen - O - 8 - 16
Fluorine - F - 9 - 19
Neon - Ne - 10 - 21
Sodium - Na - 11 - 23
Magnesium - Mg - 12 - 24
Aluminium - Al - 13 - 27
Silicon - Si - 14 - 28
Phosphorous - P - 15 - 31
Sulfur - S - 16 - 32
Chlorine - Cl - 17 - 35.5
Argon - Ag - 18 - 36
Potassium - K - 19 - 39
Calcium - Ca - 20 - 40
Scandium - Sc - 21 - 45
Vanadium - Vn - 22 - 48
Titanium - Ti - 23 - 51
Vanadium - Vn - 24 - 52
Manganese - Mn - 25 - 55
Iron - Fe - 26 - 56
Cobalt - Co - 27 - 59
Nickle - Ni - 28 - 59
Copper - Cu - 29 - 64
Zinc - Zn - 30 - 65