Structure of the Atom
What are the three subatomic particles, and what are respective charges?
proton- positive
neutron- none/neutral
electron- negative
What is the periodic table?
It is a table of elements
How is the atomic number determined?
it is the number of protons in the element
What does hierarchy mean?
To sort from largest to smallest or smallest to largest
What is matter?
Anything that takes up space
Daily Double!
How can we ensure our elements are stable?
Balance out the number of protons and electrons
You discovered that sodium is found in Group 1, Period 3 on the periodic table. Where should you look for
another element that has similar properties?
Group 1
Is beryllium a compound, molecule, or an element?
element
If a sample of gold were reduced to the smallest possible particle of pure gold, which statement would most accurately
describe the result?
A. The sample would be reduced to atoms of gold.
B. The sample would be reduced to molecules of gold.
C. The sample would be reduced to protons and neutrons of gold.
D. The sample would be reduced to electrons and protons of gold.
A. The sample would be reduced to atoms of gold.
In Science class, Ms. Farrar told her students that elements are like the letters of the alphabet. What did she mean
by this analogy?
All elements are represented by one or two letters
Where are the three subatomic particles found in the atom?
protons and neutrons- nucleus
electrons- orbitals
How many known elements are found in the periodic table? Does this mean there are only these many elements?
118, no.
What is a compound, molecule, and element?
compound: two or more different atoms bonded together
molecule: two or more atoms together
element: one atom
Which level of organization is the LEAST specialized?
Atom
Wager: (you may put up all or none of your points)
What is the atomic theory?
Where does the majority of the atom's density come from?
Nucleus (protons and neutrons)
Look at your periodic table. Which element would have similar properties as sulfur? EXPLAIN WHY
A. Potassium
B. Hydrogen
C. Oxygen
D. Chlorine
C. Oxygen, because they are in the same group which means they have similar properties
What is the difference between a molecule and a compound?
A molecule is formed when two or more atoms bond chemically, while a compound is a molecule that contains at least two different elements
WAGER: You may put up all or none of your points
Draw an element from your periodic table and label the atomic number, atomic mass, atomic symbol, and element name
Scientific knowledge may change as new evidence or information is discovered.
This states that science is ________
Durable
How would you describe the relationship between the volume and the mass of the nucleus in an atom?
The nucleus is very dense but contributes minimally to the volume of the atom.
If there are four elements whose atomic number increases by one, what is their relative position to one another on the periodic table?
They would be in the same period/row
Peter explores the periodic table and how atoms can combine to form compounds. He uses beads with different sizes
and colors as models. Each different type of bead represents atoms from a different element. How can Peter best use the
beads to show how compounds form in nature?
He can arrange the beads into various formations using different colors and sizes multiple times.
List the hierarchy or organization of living things. (atoms to organisms)
atoms, molecules, cells, tissue, organs, organ systems, organisms
The human body contains a large variety of molecules, including carbohydrates, proteins, sugars, fats, and others.
However, the human body is made mostly of three elements: carbon, hydrogen, and oxygen.
Write a statement that correctly describes this relationship.
A small number of elements are arranged in a large number of configurations.