Fundamentals of the Periodic Table

What does the atomic number of an element represent?

• Number of neutrons

• Number of protons and electrons

• Number of protons

• Number of electrons

What is the symbol for boron on the periodic table?

• Bo

• B

• Br

• Bn

How do you calculate the number of neutrons in an atom?

• Add the atomic number and atomic mass

• Divide the atomic mass by the atomic number

• Subtract the atomic number from the atomic mass

• Multiply the atomic number by the atomic mass

What particles are found in the nucleus of an atom?

• Only protons

• Protons and neutrons

• Neutrons and electrons

• Protons and electrons

How many electrons can the first shell of an atom hold?

• 4

• 18

• 8

• 2

What is the maximum number of electrons the second shell can hold?

• 18

• 8

• 2

• 4

What is the octet rule?

• Atoms prefer to have 8 electrons in their first shell

• Atoms prefer to have 8 electrons in their outermost shell

• Atoms prefer to have 8 protons in their nucleus

• Atoms prefer to have 8 neutrons in their nucleus

How many electrons does boron have?

• 3

• 7

• 5

• 11

In the electron configuration of boron, how many electrons are in the second shell?

• 5

• 2

• 3

• 8

For an element with 17 protons, how many electrons will be in the third shell?

• 2

• 10

• 7

• 8