the number over the chemical symbol is called what?
100
Alkali Metals, Alkaline Earth Metals
What are the names of the groups that are the most reactive groups in the s-block of the periodic table of elements?
100
Rows on the periodic table
What are periods?
100
Electrons in the outermost energy level
What are valence electrons?
200
The metals and nonmetals
The zigzag lines divide what?
200
Metals
the largest categorey (metals,nonmetals,metalloids) has the most elements
200
Transitional Metals
Which group of elements play an important role in living organisms, and are also extremely valuable as strong, structural useful materials AND make up the d-block on the periodic table?
200
This number tells you the number of valence electrons in a group.
What is the group number?
200
Two electrons then Eight electrons then Eight electrons
How many electrons "fit" in the first three energy levels?
300
On the other side of the zigzag line
Where are the meatalliods o the table
300
The chemical symbol
The one or Two letter symbol for each element is called what?
300
Boron Group
The elements boron (B), aluminum (Al), gallium (Ga), indium (In), and thallium (Ti), belong in which elemental group?
300
This number increases by one from element to element on the periodic table
This number increases by one from element to element on the periodic table.What is the atomic number?
300
2 electrons in the first energy level, 8 in the second, 8 in the third, and 2 in the fourth
What is the configuration for Calcium? (or What is Calcium?)
400
Alkine Earth metals
Group 2 contains what metals?
400
The sum of protons and neutrons in the elements atom
What is the atomic mass?
400
Carbon (C), Silicon (Si), Germanium (G), Tin (Sn), and Lead (Pb)
Which elements belong in the Carbon Group?
400
These are the rows on the periodic table and the levels on the planetary model.
What are energy levels?
400
All the elements in this family have a stable octet of electrons
What are the Noble Gases
500
Less mettalic
As the table progresses from left to right the eements become less _mettalic.(More or less)
500
Nonmetals
Hydrogen,Hellium,Neon,and Oxygen are all called?
500
Nitrogen Group (5A)
Name the group which contains the elements: Nitrogen (N), Phosphorus (P), Arsenic (As), Antimony (Sb), and Bismuth (Bi)
500
The columns on the periodic table
What are groups?
500
All the elements in this family need one valence electron to become stable