Exploring the Periodic Table and Atomic Structure

The video tutorial begins with a recap of a previous assignment and transitions to a detailed explanation of the periodic table, including atomic numbers, symbols, and atomic mass. It delves into the history and etymology of element names, highlighting stories behind their origins. The structure of the periodic table is explained, focusing on periods and groups, and their relation to valence electrons and chemical behavior. The tutorial concludes with instructions for an assignment on atomic structure practice.

What does the atomic number of an element represent?

• The atomic mass

• The number of electrons in the outer shell

• The number of protons

• The number of neutrons

How are the symbols of elements with two letters formatted?

• Both letters are capitalized

• The first letter is lowercase and the second is capitalized

• Both letters are lowercase

• The first letter is capitalized and the second is lowercase

What is the atomic mass of an element?

• The number of protons

• The number of neutrons

• The number of electrons

• The average mass of all isotopes

Which element was named after the first woman to win the Nobel Prize?

• Radium

• Polonium

• Einsteinium

• Curium

What do the periods on the periodic table represent?

• The atomic mass

• The number of neutrons

• The number of protons

• The energy levels of valence electrons

How many periods are there on the periodic table?

• 10

• 5

• 18

• 7

What do the groups on the periodic table indicate?

• The number of valence electrons

• The number of neutrons

• The number of protons

• The atomic mass

Where do the two rows at the bottom of the periodic table fit?

• Between 100 and 118

• Between 1 and 2

• Between 56 and 71 and 88 and 103

• Between 18 and 19

What is the first step in completing the atomic structure practice assignment?

• Find the number of valence electrons

• Find the number of neutrons

• Find the atomic mass

• Find the atomic number

How do you find the number of neutrons in an element?

• Add the atomic number and atomic mass

• Multiply the atomic number by the atomic mass

• Subtract the atomic number from the atomic mass

• Divide the atomic mass by the atomic number