PS4.D Lewis and Bohr diagrams

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Beryllium has an atomic number of 4 and a mass number of 9

It has ​

Select answer

protons and ​ ​

Select answer

neutrons

4 p⁺
5n^o

Multiple Choice

The number of neutrons in an atom =

• protons - neutrons

• mass number - protons

• protons - neutrons

• mass number - electrons

Multiple Choice

The first energy level can hold __ electrons

• 2

• 8

• 10

• 18

Multiple Choice

The second energy level can hold __ electrons

• 2

• 8

• 10

• 18

Multiple Choice

The 3rd energy level can hold __ electrons before we begin to fill the next energy level

• 2

• 8

• 18

• 32

Multiple Choice

Which one of these is a Bohr Model?

Multiple Choice

How many valence electrons are shown in this Bohr diagram?

• 2

• 3

• 5

• 8

Multiple Choice

Recall that valence electrons are the electrons on the orbit (shell) farthest from the nucleus. How many valence electrons?

• 2

• 4

• 6

• 8

Multiple Choice

Which row of the Periodic Table must this element come from?

• 1

• 2

• 3

• 4

Multiple Choice

Is this image showing the CORRECT electron dot diagram for carbon ? (Use a Periodic Table)

• YES!

• NO!

• BRO!

Multiple Choice

What element does this Lewis Dot Digram represent? (Use a Periodic Table)

• Li

• Al

• C

• Be