Question

write configuration of 1to20elements and their valencee.

Answer 1

HYDROGEN- 1
ZINC-2
OXYGEN-2
FLUORINE-1
HELIUM-0
POTASSIUM-1
ALUMINIUM-3
BORON-3
CALCIUM-2
CARBON-2
BARIUM-2
CHLORINE-1

Answer 2

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Home » Science Notes Posts »Chemistry » Elements » Table of Valences of the Elements

Table of Valences of the Elements 7

This entry was posted on May 25, 2014 by Todd Helmenstine (updated on February 13, 2017)



A lithium atom has one outer shell electron, so it’s usual valence is +1, but it can lose the electron and have a valence of -1.

This is a table of the valences or oxidation states of the elements. The most common valences are in BOLD. Values in italics are predicted theoretical values.

This information is available on a Color Periodic Table of the Elementsor a Black and White version. A simpler version listing only the most common valence charges is also available.

 NUMBER SYMBOLELEMENTVALENCE1HHydrogen1, 0, -12HeHelium03LiLithium1, -14BeBeryllium25BBoron3, 2, 16CCarbon4, 3, 2, 1, -1, -2, -47NNitrogen5, 4, 3, 2, 1, 0, -1, -2, -38OOxygen2, 1, 0, -1, -29FFluorine0, -110NeNeon011NaSodium1, -112MgMagnesium213AlAluminum3, 114SiSilicon4, 3, 2, 1, -1, -2, -415PPhosphorus5, 4, 3, 2, 1, 0, -1, -2, -316SSulfur6, 5, 4, 3, 2, 1, 0, -1, -217ClChlorine6, 5, 4, 3, 2, 1, 0, -1, -218ArArgon019KPotassium1, -120CaCalcium2