NGSS Science

The horizontal (side to side) rows in the Periodic Table are called

• groups

• families

• periods

• atomic numbers

The Periodic Table is a table that lists___________ .

• matter

• rocks

• elements

• chemistry

O is the correct chemical symbol for oxygen.

• True

• False

The Periodic Table contains all of the following except

• atomic number

• chemical symbol.

• atomic mass

• chemical formula.

In which direction do periods go on the Periodic Table?

• up and down

• across the table

• from the corners

• down

What is the correct chemical symbol for the element potassium?

• P

• K

• PO

• PH

Most of the elements on the Periodic Table are metals.

• True

• false

In the modern Periodic Table, elements are arranged

• according to atomic mass.

• according to atomic number.

• in alphabetical order.

• according to the number of neutrons in their nuclei.

What is Cu?

• Copper

• Zinc

• Iron

• carmel

The Modern Periodic Table of Elements is arranged by

• atomic mass

• atomic number

• valence electrons

• number of isotopes