Locating Elements
What element has an atomic mass of 69.723
What is Gallium
What elements are touching the "staircase" on the periodic table
Metalloids
what are groups
How to determine the number of protons of an atom
What is the atomic number
3 groups that all elements are divided into
What are metals, nonmetals, and metalloids
This element is number 19 on the table
What is the phosphorus
The majority of the periodic table is...
metals
Neutrons and protons make up the nucleus and equal _.
What is the atomic mass?
What is the same number as protons (the atomic number)
This scientist made the first model organized according to atomic mass and used the Law of Octaves
This element has 8 protons and needed for life
What is Oxygen
These types of elements are malleable and ductile
metals
Determines the atomic number
What are protons?
How to determine the number of neutrons an atom has
Subtract the atomic number from the rounded atomic mass
Mendeleev also used atomic mass but did not follow octaves because he knew and left blanks for what...
What element is found on Group 4 period 5?
Ziconium
Which is not a non-metal from the following: Boron, Iron, Hydrogen, Argon?
What is Iron
Increases by one from left to right of the periodic table
What is the atomic number
What is the name has a Greek or Latin root word so the symbol has not been translated to match English
How Mosley arranged the periodic table
Group number and period number that Copper (Cu) is in...
What is group 11, period 4
Group that is already stable with 8 valence electrons
What are Noble Gases
How to determine the number of valence electrons a group has
Second group number
Example: 1 or 1A, the 1 next to the A
18 or 8A, the ones place of 18 or the 8 in front of the A
What is:
Protons - 15, Neutrons - 16, Electrons - 15, Valence Electrons - 5
Why can atomic mass NOT be used to arrange the table? Mosley understood that these altered Element information because it changed mass)
What is that the mass changes based on the different isotopes an atom has. Mass is an average of all of the element's isotopes.