Valence Electron and Lewis Electron Dot Symbol

Which of the following statements about subatomic particles is correct?

• The Electron has negative charge.

• The Proton has no charge.

• The Neutron has negative charge.

Rows on the periodic table are called _____,

while columns are called _____.

• Groups, Families

• Groups, Periods

• Families, Groups

• Periods, Groups

The Group Number of an element tells you what?

• Valence Shell

• Total Electrons

• Number of Protons

• Valence Electron

Please prepare your periodic tables by opening your books to page 143.

• Already did Sir.

• Yes Sir.

Which of the following elements is not from Group 4A of the Periodic Table of Elements?

• Magnesium (Mg)

• Silicon (Si)

• Carbon (C)

• Germanium (Ge)

Which of the following elements is not from Group 7A of the Periodic Table of Elements?

• Bromine (Br)

• Iodine (I)

• Astatine (At)

• Sodium (Na)

Find me.

I am an element from Period 4, Group 6A.

What element am I?

• Phosphorous (P)

• Sulfur (S)

• Selenium (Se)

• Bromine (Br)

Which of the following elements do not have 5 valence electrons?

• Arsenic (As)

• Phosphorous (P)

• Nitrogen (N)

• Gallium (Ga)

Find me.

I am an element from Period 6, Group 3A.

What element am I?

• Indium

• Thallium

• Tin

• Lead

How many valence electrons does Strontium (Sr) have?

• 1

• 2

• 3

• 4