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Elements&Compounds

Review for Test

QuestionAnswer
The smallest part of an element is called the ________. atom
I'm a pure substance composed of the same type of atom throughout. What am I? element
I am a pure substance made of two or more atoms, chemically combined. What am I? compound
How many different elements make up the compound water. two
The most abundant element in the biosphere is ______. Carbon (C)
Most of the atmosphere is made up of __________ which is a gas. Nitrogen (N)
What is the most abundant element in the Biosphere, Lithosphere, and Hydrosphere? Oxygen (O)
NaCl, HCl, and FeS are all _________. compounds
Unlike elements, compounds are made up of _____ or more types of matter. two
One way to tell how many elements are in a compound is to count all the ____________________________. capital letters
Elements are represented on the Periodic Table of Elements with their ___________________________. chemical symbols
What two elements are present in all four components of the earth. Hydrogen (H) and Oxygen (O)
Si, K, Mg, Fe are all__________. elements
The sum of all living matter is the _________. biosphere
All the water on the earth is the ___________. hydrosphere
The rigid, outer part of the Earth is the ___________ lithosphere
The layer of gas surrounding the planet Earth is the _________________. atmosphere
All of the known pure substances on the earth are listed on the _______________________________. Periodic Table of Elements
Compounds are represented by using their _____________________. chemical formula
Created by: cmpace