Test Table

ChemistryWiki | RecentChanges | Preferences

Charge of Ion from Periodic Table
1 (1A)	2 (2A)	13 (3A)	14 (4A)	15 (5A)	16 (6A)	17 (7A)	18 (8A)
H ¹⁺							He 0
Li ¹⁺	Be NA	B NA	C ^4-	N ^3-	O ^2-	F ^1-	Ne 0
Na ¹⁺	Mg ²⁺	Al ³⁺	Si NA	P ^3-	S ^2-	Cl ^1-	Ar 0
K ¹⁺	Ca ²⁺	Ga ³⁺	Ge NA	As NA	Se ^2-	Br ^1-	Kr 0
Rb ¹⁺	Sr ²⁺	In ³⁺	Sn NA	Sb NA	Te NA	I ^1-	Xe 0
Cs ¹⁺	Ba ²⁺	Tl ³⁺	Pb NA	Bi NA	Po NA	At NA	Rn 0
Fr ¹⁺	Ra ²⁺

Notes:
1. NA indicates element does not have a specific charge.
2. The d-block and f-block elements are not shown (do not have charges you get from Periodic Table)
3. First row indicates the names of the column (also called groups or family)
(Ex. 1(1A) indicates Group 1 or sometimes called Group 1A)

The [scalar form]? of Coulomb's law will only describe the magnitude of the electrostatic force between two electric charges. If direction is needed as well, then the [[#Vector form|vector form]] is required. The magnitude of the electrostatic force (F) on a charge (q₁) due to the presence of a second charge (q₂), is given by

: <math>F = k_\mathrm{e} \frac{q_1q_2}{r^2},</math>

where r is the distance between the two charges and k_e a proportionality constant. A positive force implies a repulsive interaction, while a negative force implies an attractive interaction.<ref>[Coulomb's law], Hyperphysics</ref>