Mastering The Periodic Table: Atoms Protons Neutrons And Electrons

The video tutorial explains how to read the periodic table, focusing on atomic numbers and masses. It introduces the Bohr diagram and electron configuration, detailing the rules for filling electron shells. The tutorial emphasizes the octet rule and provides examples of applying these rules to configure electrons in atoms.

What does the atomic number of an element represent?

• The number of protons in the nucleus

• The number of electron shells

• The number of neutrons in the nucleus

• The total number of protons and neutrons

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

• Add the atomic number to the atomic mass

• Subtract the atomic number from the atomic mass

• Divide the atomic mass by the atomic number

• 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

• Electrons and protons

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

• 4

• 2

• 8

• 18

What is the octet rule?

• Atoms are stable with 18 electrons in the outer shell

• Atoms are stable with 4 electrons in the outer shell

• Atoms are stable with 8 electrons in the outer shell

• Atoms are stable with 2 electrons in the outer shell

How many electrons does boron have in its second shell?

• 2

• 3

• 5

• 8

What is another name for an electron shell?

• Nucleus

• Neutron layer

• Proton level

• Orbital

How many electrons are in the outer shell of an atom with 17 protons?

• 10

• 8

• 7

• 2

What is the total number of electrons in an atom with 17 protons?

• 35

• 17

• 8

• 18

How do you determine the number of electrons in a neutral atom?

• It is equal to the number of protons

• It is equal to the atomic mass

• It is equal to the number of electron shells

• It is equal to the number of neutrons