Grade 8 Periodic Table

Question 1

Mendeleev arranged his table in terms of ...

Accepted Answer

Mass

Question 2

Most elements on the periodic table are classified as __________.

Accepted Answer

Metals

Question 3

An element in this group is found as graphite or diamond.

Accepted Answer

Carbon group

Question 4

How many periods are there in the periodic table?

Accepted Answer

7

Question 5

How many metalloids are in the Oxygen group?

Accepted Answer

1

Question 6

Which pair of elements would have similar properties due to the position in the periodic table?

Accepted Answer

Copper (Cu), Gold (Au)

Question 7

Which group includes some of the most familiar elements like nickel, iron, and copper?

Accepted Answer

Transition metals

Question 8

Which group on the table has one metalloid and the rest metals?

Accepted Answer

Boron group

Question 9

The element that makes up a large percent of our bones is a(n)

Accepted Answer

Alkaline earth metal

Question 10

Which group of metals is the most reactive?

Accepted Answer

Alkali metals

Question 11

Which group of elements on the periodic table are all gases at room temperature?

Accepted Answer

Noble gases

Question 12

Which group of elements is un-reactive?

Accepted Answer

Noble Gases

Question 13

Which properties most accurately describe the element silicon (Si)?

Accepted Answer

Semiconductor, brittle and shiny

Question 14

This group is named _________ because they have a tendency to form salts with group 1 elements.

Accepted Answer

Halogens

Question 15

Which accurately describes nonmetals?

Accepted Answer

Poor conductors of electricity

Question 16

This group of elements is soft, silvery-white, and explode in water.

Accepted Answer

Alkali metals

Question 17

Groups on the periodic table are arranged

Accepted Answer

Vertically

Question 18

Elements with an atomic number higher than __ are all radioactive.

Accepted Answer

83

Questions 18