Element Symbols
Element Symbols
Organization of Periodic Table
Uses of Elements
History of Elements
100
Al
What is aluminum
100
Rounded to the nearest whole number, how many electrons are in an atom of zirconium?
What is 40.
100
The elements in group 17 of the periodic table are all called halogens. All halogens have the same
What is number of valence electrons.
100
Weather balloons
What is helium
100
drew the first periodic table
What is Dimitry Mendeleyev
200
Mg
What is magnesium
200
In an element’s square on the periodic table, the number with the greatest numerical value represents the
What is atomic mass.
200
How many groups are in the modern periodic table?
What is 18
200
Strong teeth and bones
What is calcium
200
The way the periodic table is organized
What is by the atomic number
300
Au
What is gold
300
The arrow is pointing to sodium’s
What is atomic mass
300
What are 1A, 3B, and 7A examples of on the periodic table?
What is groups.
300
Use it to breath
What is oxygen
300
Which two chemists organized elements based on properties such as how the elements react or whether they are solid or liquid?
Lavoisier and Döbereiner
400
U
What is uranium
400
What is the arrow is pointing to?
What is atomic symbol of manganese
400
The element phosphorus is located to the right of the element magnesium along the same period in the periodic table.
Phosphorus has a larger atomic mass.
400
A germ killer in swimming pools
What is chlorine
400
Who was the first chemist to organize elements by atomic number?
Henry Moseley
500
Pb
What is lead
500
Rounded to the nearest whole number, how many protons are in an atom of krypton?
What is 36.
500
While looking at calcium (Ca) on the periodic table, a student needs to find an element with a greater atomic mass in the same period. Where should the student look?
What is directly to the right
500
Makes blue glass
What is cobalt
500
Who is known as the "father of modern chemistry” because he first organized all known elements into four different groups?
Antoine Lavoisier