Drawing the Bohr Model of Atoms

The video tutorial explains how to draw the Bohr model for Boron and Argon. It starts by identifying the number of protons, electrons, and neutrons using the atomic number and atomic mass from the periodic table. For Boron, the atomic number is 5, leading to 5 protons and electrons, and 6 neutrons after rounding the atomic mass. The Bohr model is drawn with protons and neutrons in the nucleus and electrons in energy levels. Similarly, for Argon, the atomic number is 18, resulting in 18 protons and electrons, and 22 neutrons. The Bohr model is drawn with electrons distributed across three energy levels.

What is the atomic number of Boron?

• 7

• 5

• 3

• 9

How many protons does Boron have?

• 3

• 5

• 9

• 7

What is the atomic mass of Boron after rounding?

• 11.5

• 11

• 10.5

• 10

How do you calculate the number of neutrons in Boron?

• Subtract the number of electrons from the atomic mass

• Add the atomic number and atomic mass

• Add the number of protons and electrons

• Subtract the number of protons from the atomic mass

How many electrons are in the first energy level of Boron?

• 2

• 3

• 4

• 1

How many electrons are in the second energy level of Boron?

• 4

• 1

• 2

• 3

What is the atomic number of Argon?

• 18

• 17

• 16

• 19

How many neutrons does Argon have?

• 24

• 20

• 18

• 22

How many electrons are in the first energy level of Argon?

• 2

• 4

• 6

• 8

How many electrons are in the third energy level of Argon?

• 6

• 12

• 10

• 8

Tags

NGSS.MS-PS1-1