Mendeleve trivia
Eka- Aluminium
Nuclear attraction and charge...
Both decreases
Nuclear charge and nuclear attraction...
Both increase.
The difference between Mendeleeve's law and Moseley's law.
Why could Mendeleeve not place hydrogen?
Properties matched with Alkali Metals as well halogens.
It is the name that Mendeleve kept for scandium
Eka- Boron
Metallic character
Increases
Acidic and basic character
Increases and decreases respectively.
Reasons why he chose atomic number over atomic mass.
Atomic number defined the element's chemical properties as it defined what its valency is.
Cl 35 and Cl 37 are examples of..
The two elements that Mendeleeve chose to focus on while creating his periodic table
Hydrogen and Oxygen
Acidic and basic character
Decreases and Increases respectively.
Valence and valency electrons
Increases, Increases then decreases respectively.
State Moseley's law.
Properties of elements are the periodic function of their atomic number.
Ca40 and Ar 40 are examples of..
Isobars
Placed elements with lighter atomic mass after those of heavier atomic mass
Valence and Valency electrons
Both remain same.
Non-Metallic character
Increases left to right on the periodic table
What is the oxygen family also known as?
Chalcogens.
State the drawback of Mendeleeve's periodic table which is related to atomic mass.
Atomic masses did not increase in a regular manner in his periodic table.
The group that Mendeleeve's periodic table accommodated for even though it had not been discovered yet.
Noble gases/ inert gases/ zero group
Period number indicates
The shell number of the element.
Chemical reactivity
Decreases.
What is the nitrogen family also known as?
pnicogens.
Where does the Lanthenoids series start and end?
Started: Ceasium
Ended: Butanium