Electron Dot Diagrams and Lewis Structures Explained

What is another name for Lewis structures?

• Molecular diagrams

• Electron dot diagrams

• Atomic models

• Chemical symbols

Tags

NGSS.MS-PS1-1

Where do chemical reactions primarily take place in an atom?

• Protons

• Outer shell

• Inner shell

• Nucleus

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

In which direction do electrons move around the element symbol when drawing Lewis structures?

• Vertically

• Randomly

• Counterclockwise

• Clockwise

How many valence electrons does hydrogen have?

• One

• Two

• Three

• Four

Which element is an exception to the rule and has only two valence electrons despite being in column 18?

• Krypton

• Helium

• Neon

• Argon

How many valence electrons does carbon have?

• Two

• Three

• Four

• Five

When do electrons begin to pair in Lewis structures?

• When there are three electrons

• When there are five or more electrons

• When there are two electrons

• When there are four electrons

How many valence electrons does nitrogen have?

• Six

• Three

• Four

• Five

How many pairs of valence electrons does neon have in its Lewis structure?

• Two pairs

• One pair

• Three pairs

• Four pairs

How many valence electrons does magnesium have?

• One

• Two

• Four

• Three