Elements
Which is the first element of the periodic table?
Hydrogen
What is the name of Group 1?
Alkali Metals
What does the atomic mass tell me?
It gives the number of neutrons and protons in an element
What are the materials that come OUT of a chemical reaction?
The products
What is the 9th element of the periodic table?
Fluorine
What information does each element on the periodic table give you?
The symbol, the name of the element, the atomic number, and the atomic mass.
True or False. The valence shell is complete in the elements of group 7.
False.
It's the last shell of any atom.
What is the product of Li+O?
This is an example of what type of chemical reaction?
Lithium Oxide
Combination reaction/Synthesis
What group does Neon belong in?
The noble gases
Which is the 18th element of the periodic table?
Argon
What are two characteristics of the noble gases?
1. Low reactivity (increasing reactivity as you go down the group)
2. Gases
3. Complete valence shells
4. Low densities
5. Nonflammable
6. Nonmetals
How many shells does Oxygen have?
2
AB + CD --> AD + CB
What type of chemical reaction is this?
Double replacement/Double displacement
NaPO3
Sodium phosphate
Are groups of elements the columns or rows?
The columns.
How many valence electrons are found in the Halogens?
7
How many electrons are found in the valence shell of Lithium?
1
What elements make up copper sulfate?
Copper, Sulfur, and Oxygen
AgNO3
Silver nitrate
How are elements and compounds different?
Elements contain only one type of atom whereas compounds are made up of two or more different elements.
Explain why Hydrogen is found in the same column as group 1 yet it is not an alkali metal.
Although hydrogen is found in group 1, it is not an alkali metal because it is a
1. nonmetal
2. but it has similar atomic structure as the rest of the elements in group 1
How many electrons are found in the valence shell of Argon?
8
2H2O --> 2H2 + O2
What type of chemical reaction is this?
Decomposition
HCl
Hydrochloric acid
Hydrogen chloride