Ionic Bonds and Compounds (with Dot Structures)

Ion Formation

100

Elements in this group have 5 valence electrons

group 15 or 5A

200

Elements in this group have a charge of 2⁺

Group 2 or 2A

300

Elements in this group have 3 valence electrons

group 13 or 3A

400

These elements are usually +2 charge, but not always

Transition metals

500

These elements do not typically form ions

group 18 or 8A

Combine These Elements

100

K, I

KI

200

Ca, S

CaS

300

Na, S

Na2S

400

Ca, Cl

CaCl2

500

Al, O

Al2O3

Combine These Elements 2

100

Sr, Cl

SrCl₂

200

K, O

K₂O

300

Be, S

BeS

400

Al, N

AlN

500

K, P

K₃P

What Kind of Ion

100

Mg

Mg²⁺

200

P

P^3-

300

Li

Li⁺

400

Br

Br^-

500

Al

Al³⁺

What Kind of Ion 2

100

Rb

Rb⁺

200

Sr

Sr²⁺

300

F

F^-

400

Se

Se^2-

500

S

S^2-

Dot Structures

100

Dot Structure for Potassium

One dot

200

Dot Structure for Calcium

2 dots

300

Dot Structure for Oxygen

6 dots

400

Dot Structure for Chlorine

7 dots

500

Dot Structure for Beryllium

2 dots