Periodic Table

How many valence electrons does group 2 have?

• 1

• 2

• 3

• 12

The columns in the periodic table are called

• a metal

• a nonmetal

• a group/family

• a period

How many neutrons can be found in an atom of Na (Sodium)?

• 12

• 11

• 22.99

• 23

What are the yellow "stair-step" elements?

• metals

• nonmetals

• metalloids

• Periods
• Groups

At room temperature, most elements are classified as...

• non-metal

• metal

• mettalloids

• halogens

Which group of elements are nonreactive due to already being chemically stable?

• Group 17

• Group 1

• Group 2

• Group 18

The identity of an element on the periodic table is determined by the number of _______.

• protons

• neutrons

• electrons

• ions

• Group 1
• Group 17
• Group 18
• Group 2

Periods on the periodic table are __________.

• Horizontal Rows

• Vertical Columns