Ionic and Covalent Bonds

How do the following two elements bond together?
K¹⁺  S^2- 

• KS
• K₈S
• K₆S₃
• K₂S

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What two types of atoms make a covalent bond?

• 2 Nonmetals

• 1 Nonmetal and 1 Metal

• 2 Metals

• 2 Noble Gases

Tags

NGSS.HS-PS1-2

How many electrons are shared in a single covalent bond?

• 2 pairs

• 4

• 2

• 1

Tags

NGSS.HS-PS1-2

This is a correct dot diagram for oxygen (O)

• true
• false

Tags

NGSS.HS-PS1-1

How many valence electrons do most atoms need to be stable?

• 1
• 2
• 6
• 8

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

In the correct Lewis Structure for methane (CH₄), how many unpaired electrons can be found around Carbon?

• 0
• 2
• 4
• 8

Tags

NGSS.HS-PS1-1

What is incorrect about the Lewis structure?

• too many valence e-
• too few valence e-
• paired e- with not all sides filled
• nothing

Tags

NGSS.HS-PS1-2

In this molecule, each CARBON makes how many bonds?

• 1
• 2
• 3
• 4

Tags

NGSS.HS-PS1-4

In this molecule, each NITROGEN makes how many bonds?

• 1
• 2
• 3
• 4

Tags

NGSS.HS-PS1-2

The bond angle about a carbon atom involved in a triple bond is____________.

• 105°

• 109.5°

• 120°

• 180°