Atom Anatomy
Periodic Table
States of Matter
Valence Electrons
Counting Atoms
Chemical Formulas
Oxidation Numbers
Ions and Isotopes
100
This part of an atom has a positive charge.
proton
100
What is number 15 called?
atomic mass
100
The three main phases or states of matter are.
Solid, liquid, gas
100
Potassium has this many valence electrons.
1
100
NH4 has this many atoms.
5
100
What is the 4 in this formula?
subscript
100
Calcium
+2
100
This is an atom that has the same number of protons, neutrons and electrons. It has no charge.
neutral atom
200
Protons and neutrons are found in this center part of the atom.
nucleus
200
What is number 14 called?
element name or chemical name
200
When a liquid changes into a gas.
evaporation
200
Scandium has this many valence electrons.
3
200
2C2H3N5 has this many atoms.
20
200
What is the 3 in the following formula?
3H2O
coefficient
200
Nitrogen
-3
200
This is an atom that has gained neutrons and now has a higher atomic mass than a neutral atom.
heavy isotope
300
The part of the atom that has no charge (neutral).
neutron
300
The columns on the Periodic Table are called this.
groups
300
When a solid changes to a liquid.
melting
300
Arsenic has this many valence electrons.
15
300
2C4H8FCOOH has this many HYDROGEN atoms.
18
300
What is Mg in this formula?
chemical symbol or element symbol
300
Chlorine
-1
300
This is an atom that has gained electrons. It now has a negative charge.
anion
400
These negative parts of the atom are found in levels orbiting around the center.
electrons
400
What is number 12 called?
Atomic Number
400
When a liquid changes into a solid.
freezing or solidifying
400
Xenon has this many valence electrons.
0 or 18
400
2S4H5(F2Ti3)3 would have this many atoms.
48
400
What is between the 4 and the 2 in this formula?
3Ba3(PO4)2
parenthesis or brackets
400
Titanium
+4
400
This is an atom that has LOST neutrons and now has a smaller atomic mass than a neutral atom.
light isotope
500
List how many electrons can fit into all the shells (energy levels) in order from the first shell (level) to the seventh.
2, 8, 8, 18, 18, 32, 32
500
What is number 13 called?
chemical symbol or elemental symbol
500
When a gas changes into a liquid.
condensation
500
Boron has this many valence electrons.
3
500
4(NH4)3PO4 would have this many atoms.
80
500
What does a coefficient do?
multiplies everything in the formula or tells you how many molecules there are
500
Radon
0
500
This is an atom that has LOST electrons and now has more protons than electrons. It has a positive charge.
cation
600
Name all 4 things that the letters are pointing to.
A-electron
B-neutron
C-proton
D-nucleus
600
You find the number of neutrons in an atom by doing this.
atomic mass - atomic number
600
The fourth state of matter. Stars are made of this.
Plasma
600
List all of the "Noble Numbers"
2, 10, 18, 36, 54, 86
600
3Cr(NH3)6(NO3)3 would have this many NITROGEN atoms.
27
600
What does a subscript do?
Tells you how many atoms you have of the element symbol that came before it
600
Chromium
+6
600
What do we call an atom that does not have equal protons and electrons and has a charge?
ion
700
Protons, neutrons and electrons are all types of what?
Subatomic particles
700
The rows on the Periodic Table are called this.
periods
700
When a solid changes directly into a gas.
sublimation
700
Who created the Periodic Table?
Dmitri Mendeleev
700
2K4Fe(SCN)6Cr2(SO4)3 has how many total atoms?
80
700
What do parenthesis or brackets do?
Connects a smaller set inside a formula. They always come in pairs.
700
Antimony
-3
700
What do we call an atom that has more or less neutrons than it is supposed to have which changes its atomic mass?
isotope
800
What state of matter forms a blob at near absolute zero?
Bose Einstein Condensate