Understanding the Periodic Table

This video tutorial provides an overview of the periodic table, focusing on the elements sulfur and oxygen. It explains the information available for each element, such as atomic number, electron configuration, and valence electrons. The tutorial highlights sulfur's properties, including its atomic number, electron configuration, and classification as a nonmetal. It also covers oxygen's atomic structure and valence electrons, emphasizing the relationship between protons and electrons in an atom.

What information can you find about an element in the periodic table?

• Only the element's name

• The element's symbol, atomic number, and more

• Just the atomic mass

• Only the electron configuration

What does the atomic number of an element represent?

• The number of protons

• The atomic mass

• The number of neutrons

• The number of electrons

How is the average atomic mass of an element determined?

• By measuring the element's volume

• By counting the protons

• By averaging the isotopes' masses

• By adding the electrons and protons

What is the electron configuration of sulfur in shorthand notation?

• [Ne] 3s2 3p4

• [Ar] 3s2 3p4

• [He] 2s2 2p4

• [Ne] 2s2 2p6

How many valence electrons does sulfur have?

• Two

• Four

• Six

• Eight

What does the pale blue color of sulfur's square in the periodic table indicate?

• It is a noble gas

• It is a nonmetal

• It is a metal

• It is a metalloid

How many protons are present in an oxygen atom?

• Eight

• Six

• Ten

• Twelve

What is the relationship between the number of protons and electrons in a neutral atom?

• They are equal

• Electrons are double the protons

• Protons are double the electrons

• Protons are half the electrons

How many valence electrons does an oxygen atom have?

• Six

• Eight

• Two

• Four

Where are valence electrons located in an atom?

• In the innermost shell

• In the outermost shell

• In the middle shell

• In the nucleus