Bohr Models

Multiple Choice

According to the periodic table information shown, what is the atomic number of Fluorine?

• 9

• 18.998

• 2

• 8

Multiple Choice

How many protons and neutrons should be written in the nucleus for a Bohr model of Fluorine?

• 9 protons and 10 neutrons

• 10 protons and 9 neutrons

• 9 protons and 9 neutrons

• 18 protons and 9 neutrons

Multiple Choice

According to the Bohr model shown for fluorine, how many valence electrons does fluorine have?

• 5

• 7

• 2

• 8

Multiple Choice

Which group in the periodic table contains elements with a full outer shell of electrons?

• Group 1

• Group 18

• Group 2

• Group 17

Multiple Select

Which of the following statements are true about Bohr models and energy levels?

• Each shell can hold a fixed maximum number of electrons.

• The first shell can hold up to 2 electrons.

• Electrons fill higher shells before lower shells are full.

• The second shell can hold up to 8 electrons.

Draw

Using the periodic table and the rules for energy levels, draw the electron configuration for sodium (Na).