Identifying Elements by Electron Configuration

The video tutorial explains how to identify an element on the periodic table using its electron configuration. It demonstrates two methods: counting the number of electrons to find the atomic number and using the periodic table's block structure to locate the element. The example used is the electron configuration 1s2 2s2 2p6 3s2 3p4, which corresponds to sulfur. The tutorial also provides insights into understanding the periodic table's blocks and orbitals.

What is the main question addressed in the video?

• How to balance chemical equations

• How to identify an element from its electron configuration

• How to calculate molecular weight

• How to determine the state of matter

What is the first step in identifying an element using its electron configuration?

• Counting the number of electrons

• Counting the number of neutrons

• Counting the number of protons

• Counting the number of orbitals

How many electrons are represented in the configuration 1s2 2s2 2p6 3s2 3p4?

• 14

• 12

• 10

• 16

What is the atomic number of sulfur?

• 15

• 14

• 17

• 16

What does each block in the periodic table represent?

• An orbital type

• A type of chemical bond

• A chemical reaction

• A group of elements

Which block can hold up to 10 electrons?

• d block

• p block

• f block

• s block

In which period is the element with the configuration 3p4 located?

• Fourth period

• Third period

• Second period

• First period

How many electrons can the p block hold?

• 8

• 6

• 4

• 2

What is the significance of the configuration 3p4 in identifying the element?

• It indicates the element is a metal

• It means the element is radioactive

• It shows the element is in the third period and fourth group of the p block

• It suggests the element is a noble gas

Which element is confirmed to have the electron configuration 1s2 2s2 2p6 3s2 3p4?

• Oxygen

• Phosphorus

• Sulfur

• Chlorine