Chemistry Unit 5 - Lesson 1

Which of the following is NOT a result of the arrangement of elements by increasing atomic number?

• Periodic pattern in properties

• Random distribution of elements

• Predictable trends in properties

• Grouping of similar elements

In the Periodic Table, which direction do periods run?

• Vertically

• Diagonally

• Horizontally

• Circularly

What do elements in the same group of the periodic table have in common?

• Different atomic numbers

• Similar properties

• Similar atomic masses

What do elements in the same period have in common?

• The same atomic number

• The same number of protons

• The same number of occupied energy levels

• The same chemical properties

What is the definition of the Periodic Law?

• Elements are arranged in order of increasing atomic number

• Elements in the same group have similar properties

• Elements in the same period have similar properties

• Elements have the same number of occupied energy levels

What are the horizontal rows on the Periodic Table called?

• Periods

• Groups

• Blocks

• Families

What are the vertical columns on the Periodic Table called?

• Periods

• Groups

• Blocks

Elements in the same group have ______ properties.

• Similar

• Different

• Opposite

• No

Elements in the same period have ______ properties.

• Similar

• Different

• Opposite

• No

Tags

NGSS.HS-PS1-1

What is the atomic mass of Lutetium?

• 84.798

• 174.967

• 131.294

• 222.018