The Periodic Table
A row across the Periodic Table is known as a...
Period
In a Bohr Model, how many electrons can the first energy level hold?
2 electrons
Atoms are small particles that CANNOT be...
broken down by ordinary chemical reactions.
What group is Phosphorous in? (Provide the GROUP NUMBER and the family name)
Group 5 - Nitrogen Group
Lewis Dot Diagrams are used to represent which specific type of particle in an atom?
Valence Electrons
A column going up or down the Periodic Table is known as a...
Group or Family
In a Bohr Model, how many electrons can the second energy level hold?
8 electrons
This scientist conducted the Gold Foil Experiment and discovered that atoms have a small, dense center called the nucleus.
Ernest Rutherford
How many electrons does Magnesium have (assuming it is neutral)?
12 electrons
Draw the Lewis Dot Diagram for Hydrogen
H - 1 electron
The large section of elements between Group 2 and Group 3 in the middle of the Periodic Table is known as the...
Transition Metals
In a Bohr Model, how many electrons can the third energy level hold?
18 electrons
Electrons in an atom move around the nucleus in...
Energy levels or Orbitals
Is Arsenic a Metal, a Nonmetal, or a Metalloid?
Metalloid
Draw the Lewis Dot Diagram for Carbon.
C - 4 electrons
About 80% of the elements on the Periodic Table can be classified as...
Metals
Draw the Bohr Model for Carbon.
Carbon has 6 protons = 6 electrons
First energy level - 2 electrons.
Second energy level - 4 electrons.
Before Rutherford discovered the nucleus, scientists thought that atoms kind of looked like what desert?
Plum Pudding
How many neutrons does Calcium have (based on the rounded atomic mass)?
20 neutrons
Draw the Lewis Dot Diagram for Oxygen.
O - 6 electrons
A small section of the elements on the Periodic Table that can't be classified as metals or as nonmetals.
Metalloids
Draw the Bohr Model for Sodium.
Sodium has 11 protons = 11 electrons.
First energy level = 2 electrons
Second energy level = 8 electrons
Third energy level = 1 electron
The small, dense center of an atom where the protons and neutrons are located.
Nucleus
What is the chemical symbol for Tungsten?
W
Draw the Lewis Dot Diagram for Helium.
He - 2 electrons