CHEMISTRY TEST-3

What is a group in the periodic table?

• A row of elements

• A column of elements

• A diagonal set of elements

• A block of metals and nonmetals

Which group contains noble gases?

• Group 1

• Group 2

• Group 7

• Group 18

Name two alkali metals.

• Helium and Neon

• Sodium and Potassium

• Oxygen and Nitrogen

• Iron and Copper

What do elements in the same period have in common?

• Same number of neutrons

• Same chemical properties

• Same number of electron shells

• Same reactivity

Na - Group? Period?

• Group 1 / Period 3

• Group 2 / Period 3

• Group 1 / Period 2

• Group 2 / Period 2

O - Group? Period?

• Group 15 / Period 2

• Group 16 / Period 2

• Group 17 / Period 3

• Group 16 / Period 3

Cl - Group? Period?

• Group 17 / Period 3

• Group 16 / Period 2

• Group 17 / Period 2

• Group 18 / Period 3

Al - Group? Period?

• Group 13 / Period 3

• Group 14 / Period 2

• Group 12 / Period 3

• Group 13 / Period 2

Kr - Group? Period?

• Group 18 / Period 4

• Group 17 / Period 4

• Group 16 / Period 4

• Group 18 / Period 5

What determines the chemical properties of an element?

• Mass number

• Number of neutrons

• Electron configuration

• Number of protons