Electron Configuration and Periodic Table Concepts

The video tutorial explains how to identify an element on the periodic table using its electron configuration. It presents two methods: counting the total number of electrons to match the atomic number and using the periodic table's orbital blocks. Both methods confirm that the given electron configuration corresponds to aluminum, which has 13 electrons and protons.

How can you determine the element from an electron configuration by counting electrons?

• By counting the number of protons

• By counting the total number of electrons

• By counting the number of valence electrons

• By counting the number of neutrons

What is the significance of an element being neutral on the periodic table?

• It has no protons or electrons

• It has more protons than electrons

• It has an equal number of protons and electrons

• It has more electrons than protons

Which element has an atomic number of 13?

• Aluminum

• Silicon

• Phosphorus

• Magnesium

What is the maximum number of electrons that the d orbital can hold?

• 6

• 2

• 10

• 14

Which orbital block holds up to 6 electrons?

• s block

• p block

• d block

• f block

What is the electron configuration ending for aluminum?

• 3s1 3p1

• 3s2 3p2

• 3s2 3p1

• 3s2 3d1

How can you identify an element using the periodic table and electron configuration?

• By looking at the element's color

• By counting the number of neutrons

• By checking the element's melting point

• By matching the electron configuration to the element's position

Which element corresponds to the electron configuration ending in 3p1?

• Aluminum

• Carbon

• Boron

• Nitrogen