Whiteboard Challenge

Element # protons

# of electrons

# of valence electrons

Lewis dot diagram

Charge (from periodic table)

Give or Gain electrons

# of electrons it gives or gains

Sodium

Chlorine

Beryllium

Lithium

How many valence electrons does

Alhave?

What is the charge of

K

Anion or Cation?

Ag+1

How many valence electrons does

Arhave?

Anion or Cation?

N(find it)

Anion or Cation?

Cl-1

What is the charge of

S

Anion or Cation?

O2-

How many valence electrons does

Clhave?

Anion or Cation?

Zn2+

What is the charge of

Ca

How many valence electrons does

Nahave?

Anion or Cation?

Mg2+

Anion or Cation?

Na1+