Bohr diagrams and Lewis structures Grade 9

How are electrons arranged in an atom?

• In groups of five

• In energy levels

• By colour

• By shape

Rows on the period table are called _____ while columns are called _____.

• groups, families
• groups, periods
• periods, groups
• families, groups

How many electrons are in the outer (valence) shell of Chlorine (Cl)?

• 1
• 3
• 6
• 7

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

The period for Bromine is ___________.

• 3
• 2
• 4

Tags

NGSS.HS-PS1-1

How many electrons should Carbon have around its Lewis structure?

• 1

• 3

• 4

• 5

What is a Lewis Structure?

• It shows all of the particles in the atom.

• Contains protons and neutrons

• Only shows the element symbol and it's outer most electron shell

• Contains protons and electrons

What element is represented in this Bohr Model? 

• Carbon
• Hydrogen
• Aluminum
• Lithium

Tags

NGSS.HS-PS1-1

This is a correct Lewis structure for oxygen (O)

• true

• false

What colour is used for neutrons in this element diagram?

• yellow

• blue

• red

• balck

How would you draw a Lewis structure for Magnesium?

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