Show:
Elements
Compounds
Mixtures
States of Matter
Periodic Table of Elements
100
What is an element?
The building blocks of matter, a molecule made out of only one type of atom
100
What is a compound?
Two or more atoms of a different element, chemically combined
100
What is a mixture?
when two or more substances combined physically
100
How do atoms/molecules move in the liquid state?
they move freely, beginning to space out
100
Where are groups located on the periodic table of elements?
Going down, columns
200
What are elements represented by?
Chemical symbols
200
Compounds are represented by?
Chemical formulas
200
What is a heterogeneous mixture?
a mixture when you can see the different parts
200
What is the difference between an atom and a molecule?
molecules are made up of atoms.
200
Where are periods located on the periodic table of elements?
Going across, rows
300
What is the chemical symbols for Copper?
Cu
300
How many atoms are in CH4
5 atoms
300
What is a homogeneous mixture?
A mixture where it is the same throughout
300
What are atoms/molecules like in the BEC state?
Completely still
300
What does the atomic number tell you?
the number of protons and electrons
400
What element is represented by the chemical symbol Co?
Cobalt
400
What elements are in NaCl?
Sodium and Chlorine
400
Can mixtures be made up of elements?
yes
400
What are atoms/molecules like in the gas state?
Moving all over the place, quickly
400
How do you find out of many neutrons an elements has?
atomic mass-atomic number
500
What is the main parts of an atom?
Protons, neutrons and electrons
500
What is the compound for water?
H2O
500
Give three examples of mixtures.
Answers will vary
500
What are the five states of matter?
BEC, solid, liquid, gas, plasma
500
What is a group?
same physical, chemical properties, same number of electrons on the outer most shell