Structure of Atoms
Isotopes
Periodic Table
Vocabulary
Atomic Math
100
The center of an atom is called
The nucleus
100
What does the atomic number tell you?
The number of protons in an element
100
A table of elements organized by atomic number and chemical properties is called?
Periodic Table
100
The smallest observable piece of matter is called
an Atom
100
What is the mass, # of Protons, # of Neutrons, and # of Electrons for the element shown.
H
Mass 1
Proton 1
Neutrons 0
Electron 1
200
What makes up the mass of a atom?
Protons and Neutrons
200
What is an isotope?
An element with different number of neutrons.
200
What does a group tell you?
How many electrons are in the outermost shell.
200
An element that has the same number of protons but different electrons is called
Ion
200
What is the mass, # of Protons, # of Neutrons, and # of Electrons for the element shown.
13C
Mass 13
Proton 6
Neutrons 7
Electron 6
300
What charge is an electron?
negative
300
What is an Ion?
An element that has gain or loss an electron
300
What does the Period tell you about an atom?
The number of energy shells or orbitals
300
An element that has the the same number of protons but different neutrons are called
Isotopes
300
What is the mass, # of Protons, # of Neutrons, and # of Electrons for the element shown.
O2-
Mass 16
Proton 8
Neutrons 8
Electron 10
400
What is the model that represents an atom on 2d media often called the planetary model.
Bohr Model
400
What is the mass of Sodium-23?
23
400
What the difference between metals and nonmetals?
Metals are conductive and nonmetals are not
Metals are solid (except Hg) and Nonmetals are gasses (except Br)
400
a column of elements that have the same chemical properties are called
groups
400
What is the mass, # of Protons, # of Neutrons, and # of Electrons for the element shown.
2311Na+
Mass 23
Proton 11
Neutrons 12
Electron 10
500
What is a valence electron?
an electron that lives in the outermost shell of an atom
500
What is the difference between a cation and an anion?
Cation are positive
Anion are negative
500
Draw a bohr model of Carbon
500
A row of chemical elements that have the same number of electron shells.
Period
500
What is the mass, # of Protons, # of Neutrons, and # of Electrons for the element shown.
196Au2+
Mass 196
Proton 79
Neutrons 117
Electron 77