Valence Electrons
Ions
Lewis Dot
Names to Formulas
Formulas to Names
100
How many valence electrons does hydrogen have?
What is 1
100

What ion does Al make?

Al3+

100

What is the Lewis Dot structure of P?

P with 5 dots

100

Potassium chloride

KCl

100

Li2O

Lithium oxide

200
How many valence electrons does Al have?
What is 3
200

What ion does Br make?

Br-

200

What is the Lewis Dot structure of  P3-?

P with 8 dots, 3- charge

200

Magnesium fluoride

MgF2

200

CsBr

Cesium bromide

300

How do you use valence electrons to figure out ion charge?

What is more than 4 subtract 8 from valence electrons (negative), less than 4 the charge is the same as valence electrons (positive)

300

What ion does Ca make?

Ca2+

300

What is the Lewis Dot structure of Be?

Be2+

300

Rubidium oxide

Rb2O

300

BeS

Beryllium sulfide

400

How do you figure out valence electrons using the periodic table?

What is group number if less than 10 otherwise digit in ones place

400

What ion does S make?

S2-

400

What is the Lewis Dot structure of Carbon

C with 4 dots

400

Barium nitride

Ba3N2

400

AlP

Aluminum phosphide

500

How many valence electrons does Ne have?

8

500

What ion does Fr make?

Fr+

500

What is the Lewis Dot structure of I-?

I with 8 dots, 1- charge

500

Aluminum sulfide

Al2S3

500

Sr3O2

Strontium oxide