Atoms
The Periodic Table
Atoms AND the Periodic Table
Compounds
Mixtures
100
What is an atom?
The smallest unit of matter
100
How is the periodic table arranged?
By increasing atomic number.
100
This part of an element block tells us the amount of protons and electrons in an atom of that element.
atomic number
100
A compound is a substance made up of 2 or more _____.
elements
100
A mixture that can be easily separated because its parts can easily be seen is called a ____ mixture.
heterogeneous
200
Where are electrons found?
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OUTSIDE the nucleus. In the electron energy shells/rings
200
The element symbol in this example is ____. || El símbolo del elemento en este ejemplo es ____.
C
200
In order to find the amount of neutrons in an atom you ____ the atomic number from the atomic mass.
subtract
200
The small number that tells us the amount of each element in a compound is called ___. 
subscript
200
A mixture that has a uniform consistency is called a ____ mixture.
homogeneous
300
The TWO subatomic particles found in the nucleus of an atom are ____ and ____.
protons and neutrons
300
How many electron energy levels/shells does Sodium (Na) have?
3
300
This element has 9 protons.
Fluorine
300
What type of molecule is baking soda?
Compound molecule
300
This example is showing a ______ mixture.
heterogenous
400
Which subatomic particle is the arrow pointing to?
A neutron
400
The atomic number of this element is ___. The atomic mass of this element is ___.
atomic number = 36, atomic mass = 84
400
In this element there are ___ electrons.
47
400
How many atoms of hydrogen are in the compound glucose?
12
400
The biggest difference between a compound and a mixture is that a mixture...
can be separated
500
The mass of an atoms comes from the _____.
nucleus
OR
protons and neutrons
500
How many valance electrons does Hydrogen (H) have?
1
500
The symbol of the element with 5 neutrons is ___.
Be
500
How many hydrogen atoms are in 2 molecules of vinegar/acetic acid?
6
500
This example is showing a ______ mixture.
heterogeneous