Question | Answer |
The smallest part of an element or object is the _____. | atom |
An __________ is matter that is made up of one type of atom. | element |
A __________ is two or more atoms bound together. | compound |
The following compound is made up of how many elements? H2O | Two |
How many elements are in the compound Fe2O3 | Two |
Which of the following elements is one of the major components of living organisms? Sulfur Carbon Copper Water | Carbon |
Which element makes up most of the Earth's atmosphere? | Nitrogen |
Which of these is a compound?
Aluminum, Chlorine, Oxygen, Water | water |
A pure substance that cannot be broken down into a simpler substance is a good definition of an ______. | element. |
How many different elements are in this compound?
KrIS | three |
How many different elements are in this compound?
BeAlSiOB? | five |
TRUE or FALSE: Water is a compound. | TRUE |
When looking at a block on the periodic table for Sodium, "Na" is the element's __________. | chemical symbol |
______ is one of the major components of living organisms. | Carbon |
TRUE or FALSE: Oxygen is an essential element in the Earth's crust, atmosphere, oceans, and organic material. | TRUE |
NaCl is an example of a ________. | Compound |
Compounds are made of at ______ two types of matter. | Least |
Most of the Earth's atmosphere is made up of ______. | Nitrogen |
Elements are _____ substances composed of one kind of particle whereas compounds are substances that contain two or more elements that have chemically combined. | Pure |
TRUE or FALSE: One way to tell how many elements are in a compound is to count ALL the letters (not just the CAPITAL letters). | FALSE |
The element that is most abundant in both solid parts of Earth and in living matter is ________. | Oxygen |
TRUE or FALSE: When comparing an element and a compound, it is like comparing a hamburger bun (element) to a hamburger (compound). | True |
The _____ Table of Elements is a list of all known pure substances in the universe. | Periodic |