Periodic Table Quiz for Grade 8 Students

What is the name of the group in the periodic table that contains elements with similar chemical properties?

• team

• family or group

• category

• society

Which group in the periodic table contains the noble gases?

• Group 8

• Group 4

• Group 2

• Group 5

What is the atomic number of carbon?

• 6

• 3

• 12

• 8

What is the atomic number of oxygen?

• 20

• 8

• 16

• 12

Which period in the periodic table contains elements with the highest reactivity?

• Transition metals

• Group 2 (alkaline earth metals) and Group 8 (noble gases)

• Inner transition metals

• Group 1 (alkali metals) and Group 7 (halogens)

What are the chemical properties of elements in Group 1 of the periodic table?

• High melting point

• Non-reactive

• Highly reactive

• Low electrical conductivity

How does the reactivity of elements in Group 7 compare to elements in Group 1?

• Group 7 elements are more reactive

• Group 7 elements and Group 1 elements have the same reactivity

• Group 7 elements are less reactive

• Group 1 elements are more reactive

What is the trend in atomic numbers as you move from left to right across a period in the periodic table?

• Atomic numbers decrease by one

• Atomic numbers increase by two

• Atomic numbers remain the same

• Atomic numbers increase by one

In which group of the periodic table do you find elements with the highest atomic numbers?

• Noble gases

• Transition metals

• Alkali metals

• Actinides

What trend do you observe in the atomic numbers of elements as you move down a group in the periodic table?

• The atomic numbers of elements decrease by one for each element in the group.

• The atomic numbers of elements remain the same as you move down the group.

• The atomic numbers of elements increase by two for each element in the group.

• The atomic numbers of elements increase by one for each element in the group.