Structure of Atoms
Periodic Table
Trends in the Periodic table
P v C
STAAR Question
100
The subatomic particle that makes up the electron cloud
What is an electron?
100
the number of protons in the nucleus of an atom; used to determine an element's position in the Periodic Table
What is the atomic number?
100
What does APE in APE MAN stand for?
Atomic # = # of protons= # electrons
100
change which alters matter without changing its chemical composition or the identity of the substance
What is a Physical Change?
100
What element am I if tWO energy levels and SEVEN valence electrons.
F or Fluorine
200
The two subatomic particles that make up the nucleus
What is protons and neutrons?
200
average mass of one atom of an element (from particles in the nucleus)
What is the atomic Mass?
200
What does MAN stand for in APE MAN.
Mass #
-
Atomic #
=
Neutrons
200
the formation of a new substance with different properties; cannot be undone by physical means
What is a chemical change?
200
What would the atomic mass of an atom be if there are 11 protons, 12 neutrons and 11 electrons?
23
300
The subatomic particles that are in the OUTER ring of the electron cloud.
What are valance electrons?
300
This part of the table tells you how many energy shells
What is rows or Periods?
300
What subgroup is your green? 
What is a metal?
300
Can not change the matter back to its original form and can happen with fire
What is a chemical change?
300
What element is this?
What is Boron?
400
Full outer ring and not very reactive
What is a stable atom?
400
This part of the table tells you the similar properties and reactivity of the atom
What are columns or groups?
400
What subgroup is your orange?
Non metals
400
This change is easily reversible like melting of ice
What is a physical change?
400
Balanced
500
The cause of the reactivity of an atom
What are valence electrons or electrons?
500
What two groups are your Most reactive elements. (Remember a stable element is a full ring. 8 valence electrons)
Group 1 and Group 17
500
What subgroup is your blue?
What are metalloids?
500
Examples: mending a broken bone, burning paper, nail rusting, frying chicken
What are examples of chemical changes?
500
What is an electron?
It has a negative charge and much less mass than a proton.