Meet the Elements
________ is an example of an element.
-Water (H2O)
-Chlorine (Cl2)
-Carbon (C)
-Carbon Dioxide (CO2)
What is Carbon (C)?
The chart that lists all the elements.
What is the Periodic Table?
Vertical (up and down) columns of elements in the periodic table.
What are families?
An example of a molecule.
-Oxygen (O)
-Nitrogen (N)
-Carbon (C)
-Carbon Dioxide (CO2)
What is carbon dioxide (CO2)?
Made up of only one type of particle.
What is a pure substance?
Hydrogen (H), Lithium (Li), and Gold (Au) are examples of ___________.
What are elements?
Vertical (up and down) columns of elements in the periodic table.
What are families?
Elements that belong to the same family on the periodic table have similar ___________.
What are chemical properties?
CH4 is an example of a ____________.
A) family
B) chemical symbol
C) element
D) chemical formula
What is a chemical formula?
A combination of different substances NOT chemically bonded together.
What is a mixture?
Nitrogen (N) can be described as _______ and ________.
A) element, symbol
B) symbol, formula
C) formula, molecule
What is element and symbol?
Horizontal (left and right) rows of elements in the periodic table.
What are periods?
This element would have chemical reactions similar to sodium (Na).
A) Magnesium (Mg)
B) Bromine (Br)
C) Potassium (K)
What is Potassium (K)?
Nitrogen Gas (N2) can be described as _______ and ________.
A) element, symbol
B) symbol, formula
C) formula, molecule
What is formula and molecule?
These 2 variables needed to be controlled in our experiment when we made crystals.
A) The brand of salt
B) The amount of water
C) The brand of styrofoam cup
D) The amount of powder (Borax or Alum)
What are the amount of water and the amount of powder?
Shows the correct number of atoms for each element in the molecule H2SO4.
What is:
Hydrogen (H) = 2
Sulfur (S) = 1
Oxygen (O) = 4
Periods on the periodic table and all of the elements are arranged by this.
What are atomic numbers?
Examine the properties of the family below and place the correct element into its family.
Family A: -Flammable -Dark colored -Dissolves in water
1) Scientistium is a dark green element that dissolves in water.
2) Farrellanium is a pale blue liquid that is used in fire extinguishers.
What is Scientistium?
This image is a diagram of glucose (C6H12O6).
*View the 4 images Mrs. Farrell has on the DocCam*
What is Image A?
After observing the graph, these are the inferences you can make about the temperature and the amount of salt that dissolves.
*Observe graph that Mrs. Farrell has under the DocCam*
What is as the solubility of salt increases, the temperature also increases?
Shows the correct number of atoms for each element in the chemical formula 3CO2.
What is...
Carbon (C) = 3
Oxygen (O) = 6
The number of protons plus the number of neutrons.
What is the atomic mass?
-The element Sodium (Na) is a very reactive, shiny, soft metal.
-The element Neon (Ne) is a non-reactive gas.
-The element Chlorine (Cl) is a poisonous green, highly reactive gas.
________ are the characteristics you would expect the element Fluorine to have.
What is similar properties of Chlorine (reactive gas)?
Two or more atoms that are joined chemically are held together by this.
What is a bond?
These are the substances that best represent pure substances and the substances that best represent mixtures.
*Look at the diagrams labeled A-E that Mrs. Farrell has on the DocCam*
What are C and E represent pure substances and A, B, and D represent mixtures?