Show:
The table
Elements
Misc.
Other element info.
100
A vertical column used to organize elements with similar physical or chemical characteristic of the outermost electron shells of their atoms.
What is a group?
100
The atomic number measures the amount of protons in a atom.
What does the atomic number measure?
100
1869
When was the periodic table published?
100
An atom or molecule in which the total number of electrons is not equal to the total number of protons.
What is an ion?
200
18
How many groups are there in the periodic table?
200
By its' Latin name.
How is an elements symbol determined?
200
Mendeleev
Who invented the periodic table?
200
Metaliods, metals and gases.
What are the 3 groups the elements are classified in?
300
A row that is used to organize all the elements with the same amount of electrons in their shell.
What is a period?
300
The total mass of protons, neutrons and electrons in a single atom.
What is the atomic mass of an element?
300
S-block, d-block, f-block, and P-block.
What are the names of the 4 blocks in the periodic table?
300
Any element that contains an equal number of protons but different numbers of neutrons.
What is an isotope?
400
To allow for more room for new elements.
Why is there a gap in the periodic table?
400
The left side is more reactive.
Elements on the right hand side differ from elements in what general way?
400
Russia
What nation is the creator of the periodic table from?
500
They are all man-made.
What are all the elements that are in the block separated from the rest of the elements?
500
Oxygen or iron.
What is the most abundant element?
500
It has problems for atoms with atomic number greater than 137
What is the main problem the Borh model has with the periodic table?