Elements etc.
Scientists
Table Knowledge
Grouping the Elements
Grouping More Elements!
100
simplest element; one electron in outer level
What is Hydrogen?
100
He discovered a pattern to the elements
Who is Mendeleev?
100
the color of the chemical symbol in an element indicates 'this' at room temperature
What is a physical state?
100
The group with the most elements
What are transition metals?
100
lanthanides and actinides make up two rows of these group of metals
What are transition metals?
200
This alkali metal mixes with chloride to make salt
What is sodium?
200
He determined the number of protons in an atom
Who is Henry Moseley?
200
Values in parenthesis are the mass numbers of these type of elements.
What are radioactive elements?
200
This group no. 17 (nonmetals that are very reactive)
What are halogens
200
properties include softness, color of silver, shininess, and a low density
What are Alkali metals?
300
A dark gray solid halogen that can be mixed with alcohol to create an antiseptic used in hospitals
What is iodine?
300
He played chemical solitaire to determine a pattern in elements
Who is Mendeleev?
300
Another word for a group on the periodic table of elements.
What is a family?
300
This group contains nitrogen, a gas that makes up about 80% of the air
What is the Nitrogen group
300
Group no. 14
What is the Carbon Group?
400
a yellowish green gas that is used to treat water or is found in swimming pools
What is chlorine?
400
The table that Mendeleev formed
What is Periodic Table of Elements?
400
These are found along the zigzag line of the periodic table
What are metalloids?
400
These are unreactive nonmetals that are gases and have eight electrons in their outer level
What are noble gases?
400
The Oxygen Group
What is Group 16?
500
Unlike other transition metals, this metal is liquid at room temperature
What is mercury?
500
These were used by Mendeleev to note elements that he thought would later be found.
What are Question marks?
500
the law the states that the repeating chemical and physical properties of elements change periodically.
What is the Periodic Law?
500
These are very reactive metals that have one electron in their outer level
What are Alkali metals?
500
These are similar to alkaline metals but are less reactive
What are Alkali Earth Metals?
M
e
n
u