Unit 1 Review (Academic)

Each column in the periodic table is called a _________ .

• period
• group
• cluster
• unit

How are elements on the periodic table arranged by?

• in alphabetic order
• similar physical & chemical properties

• their symbols
• Just simular physical properties

Periods on the periodic table are __________.

• Horizontal Rows
• Vertical Columns

What charge do protons have?

• Positive

• Negative

• Neutral

Elements in the same group have : (2 correct answers)

• Similar chemical properties

• Similar names

• Same number of outer (valence) electrons)

• The same number of protons

This could be the dot diagram of

• Mg

• Cl

• C

• O

What is the goal of the Lewis Dot Structure?

• To determine the electron position.

• To show the element's valence electrons & bonding capabilities.

• To find the atomic mass of an element.

• To search for the number of electrons in an individual atom.

This is a correct dot diagram for oxygen (O)

• true
• false

According to the octet rule most elements need _______ valence electrons.

• 2
• 8
• 6
• 18

This is a correct dot diagram for neon (Ne)

• true

• false