Periods of the Periodic Table

What do the periods in the periodic table represent?

• A) Number of protons in each element

• B) Number of elements in each group

• C) Number of electron shells in an atom

• D) Number of neutrons in each element

What do the groups in the periodic table represent?

• A) Number of protons in each element

• B) Number of elements in each group

• C) Number of electron shells in an atom

• D) Number of electrons in the outer shell

Elements in the same period have the same number of what?

• A) Protons

• B) Electron shells

• C) Valence electrons

• D) Neutrons

What is the main characteristic that elements in the same group share?

• A) Same number of protons

• B) Same atomic mass

• C) Similar chemical properties

• D) Same number of electron shells

How many periods are there in the periodic table?

• A) 5

• B) 6

• C) 7

• D) 8

Which period does the element Oxygen belong to?

• A) Period 1

• B) Period 2

• C) Period 3

• D) Period 4

Magnesium has an electronic structure of 2.8.2, what group is magnesium in?

• 4
• 6
• 8
• 2

Tags

NGSS.HS-PS1-1

Sulphur has an electronic structure of 2.8.6, what group is sulphur in?

• Group 6

• Group 2

• Group 0

• Group 3

Calcium has an electronic structure of 2.8.8.2, what period is calcium in?

• 3
• 2
• 4
• 5

Tags

NGSS.HS-PS1-1

Argon has an electronic structure of 2.8.8, what period is argon in?

• 4
• 5
• 6
• 3

Tags

NGSS.HS-PS1-1