Elements
Nitrogen has an atomic number of 7 and an atomic mass of 14. How many electrons does Nitrogen have?
7
What is the solid that dissolves in a solution?
Solute
How are mixtures separated?
Physically
Rows in the periodic table are called
Periods
Compounds can only be separated
Chemically
In the following element, what does the number 20.008 represent?
__________
| 10 |
| Ne |
|_20.008_ |
Atomic mass
What is the liquid that dissolves a substance?
Solvent
Cereal is an example of what type of mixture?
Heterogeneous
Columns in the periodic table are called
Groups
Compounds are made up of two or more
elements or two or more kinds of atoms
Na, K, P, Mg, and O all represent the:
Atomic symbol
A mixture with only a little bit of solute is considered to be what?
dilute
Orange juice is an example of what type of mixture?
Homogeneous
Groups are combined into
Element, Compound, or Mixture?
Ag
Element
Elements are made up of
atoms
A mixture with a lot of solute that completely dissolves is what type of solution?
Concentrated
How do you create a more saturated solution from a dilute solution?
Add more solute
Elements that have the same reactivity will be found in the same
families
Element, Compound, or Mixture?
C4H12O9
Compound
The Hindenburg disaster was caused by which element?
Hydrogen
A solution that holds more solute than normal because it is at a higher temperature is considered what type of solution?
Super saturated
If a super saturated solution is allowed to cool down, sometimes the solute will start to harden. What is this process called?
Crystallization
Elements are arranged on the periodic table in order if increasing _____
Atomic number
Element, Compound, or Mixture?
Salt
Compound