Elements
Periodic Table of Elements
Compounds are made up of what?
two or more elements
What is the number on top of an elements chemical symbol in the Periodic Table?
Atomic Number
What is the biosphere?
everything that is living on the Earth's surface
What is the definition of a mixture?
Two substances that are combined physically and CAN be separated
Which of the following is considered an element?
a. water
b. salt
c. carbon
d. carbon dioxide
c. carbon
Which of the following is not considered a compound?
a. water
b. salt
c. oxygen
d. carbon dioxide
c. oxygen
What is the number beneath the chemical symbol on an element in the Periodic Table?
Atomic Mass
What is the Earth's Atmosphere?
All of the gas surrounding Earth's surface
What is the definition of a solution?
Two substances that are combined and NOT easily separated
Mg is the _________ for Magnesium
Chemical Symbol
What compound is most common in the earth atmosphere?
CO2 or carbon dioxide
What is the Atomic Mass, Atomic Number, and Chemical Symbol of Nitrogen?
7 and 14.007 and N
What is the hydrosphere? What percentage does Salt water make up?
All of the water on the Earth's surface and about 70%
What is an example of a gas mixture? What is a very common example of a liquid mixture?
CO2 and Salt Water
What is the smallest particle of matter on earth?
atom
What compound makes up over 70% of the Earth?
H2O - Water
How many groups and periods does the periodic table have?
Groups = 18 and Periods = 7
What is the cryosphere and what's an example of something included in it?
All the solid water on the Earth's surface and ice, glaciers, snow, sleet, hail, etc.
What is a homogenous mixture? Example?
A uniform mixture (something that is the same throughout) and Milk or Syrup
Elements and compounds are known as what type of substance?
pure substance
What do I have to see in a chemical formula to know its a compound? (Ex: CO2)
more than 1 capital letters
What element is most abundant in the atmosphere?
Nitrogen
What is the Earth's Geosphere? And what element is the most abundant on the Earth's crust?
All solid things on the Earth (Including the Crust, mantle and core)
Oxygen
What is a heterogeneous mixture?
Something that is NOT uniform (different looking items) and Trail Mix or Cereal