Elements
Properties of Elements
Atoms
Periods and Families
Subatomic Particles
100
What element has an atomic number of 2?
Helium
100
Which element is lighter- Helium or Hydrogen?
Hydrogen 
100
See picture: How many electrons go in the second shell of Flourine?
7
100
What element is in Period 3 and Family 13?
Aluminum
100
What subatomic particle has a positive charge?
Proton
200
What is the atomic mass of Neon?
20.180
200
True or False: The periodic table is finished and will never be changed.
False- it has changed many times since it was created.
200
See picture: How many electrons go in the first shell of Cobalt?
2
200
What element can be found in Period 2 and Family 1?
Lithium
200
What subatomic particle has a negative charge?
Electron
300
What is the atomic number of Calcium?
20
300
What does the atomic number represent?
The number of Protons and/or the number of Electrons
300
See picture: How many electrons go in the third shell of Sodium?
1
300
True or False: Oxygen is in Period 16
False- it is in FAMILY 13, and Period 2.
300
What subatomic particle has a neutral charge?
Neutron
400
What is the atomic mass of Titanium?
47.867
400
What is the atomic symbol for Silver?
Ag
400
True or False: Potassium has more electrons in the first shell than Bromine.
False- they are equal, with 2.
400
What period and family is Tin found in?
Period 5 and Family 14
400
Which subatomic particles are found in the nucleus?
Protons and Neutrons
500
What is the atomic number of Krypton?
36
500
What is the atomic symbol for Silicon?
Si
500
True or False- You can have a maximum of 8 electrons in the second shell of an atom
True
500
What period and family is Iron found in?
Period 4 and Family 8.
500
What is the formula for finding the number of neutrons in an element?
(Rounded) Atomic Mass - Atomic Number= Number of Neutrons
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