Periodic Table

What is the atomic mass of "F"

• 9

• 18

• 17

• 19

The Earth, living matter, oceans, and atmosphere are composed of-

• so many different elements that they cannot all be listed.

• all of the elements on the Periodic Table equally.

• a limited number of known elements.

• no elements at all.

Tags

NGSS.MS-ESS2-1

NGSS.MS-PS1-1

Which of the following elements is most abundant in the solid part of the Earth?

• Calcium

• Iron

• Silicon

• Potassium

Which of the following elements is found in the ocean?

• Sodium

• Nitrogen

• Sulfur

• Phosphorus

Which two elements are always present together in every living thing?

• Hydrogen and Oxygen

• Carbon and Oxygen

• Carbon and Magnesium

• Carbon and Hydrogen

What group number are the noble gases?

• 17

• 18

• 14

• 15

What is the biggest group on the table?

• metals

• nonmetals

• metaloids

• halogens

What is the name of group number 1?

• halogens

• noble gases

• alkali

• alkaline earth

Where are the metalloids found?

• far left, vertical

• stair step/diagonal

• far right horizontal

• at the bottom

What is the small group of elements called that include C,N,O?

• metals

• nonmetals

• metaloids

• noble gases